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Eighth Day 2.0 The Intensive Moisturizer
Eighth Day 2.0

Eighth Day 2.0 The Intensive Moisturizer

Efficacy100/100IrritancyHigh
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Works for

1 of 1 advertised claim delivered

Moisturizing
33 ingredients credited for this claim
Strong support
What the product description says
“The Intensive Moisturizer”
From product name

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: alanine, arginine.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: arginine, butyrospermum parkii butter.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: palmitoyl tetrapeptide-7, palmitoyl tripeptide-5, phytosphingosine, sh-oligopeptide-2, sh-polypeptide-1, sh-polypeptide-9

Hydrolyzed linseed extractKey activeEffect: HighHelps soften the upper layer of the skin~0.25–0.45%
Butyrospermum parkii butterKey active· Emollient, OcclusiveEffect: HighA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~4.6–5.6%
Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~5.5–6.7%
Cocos nucifera oilKey active· Emollient, OcclusiveEffect: HighAn emollient. Found to be as effective as a moisturizer for dry skin as mineral oil. Could be comedogenic~3.3–4%
Glutamic acidKey active· HumectantEffect: HighAn amino-acid that helps attract water to the upper layer of the skin~0.3–0.55%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~2.5–3.1%
GlycineKey active· HumectantEffect: HighHelps to attract water to the upper layer of the skin and can help restore the skin barrier function~0.25–0.5%
GlycosphingolipidsKey active· EmollientEffect: HighA type of lipids naturally present in skin. They can be converted to ceramides in skin~0.3–0.55%
Histidine hclKey activeEffect: HighA salt of an amino-acid that helps attract water to the upper layer of the skin. Might be helpful in restoring the skin barrier function~0.3–0.55%
Hydrolyzed hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin~0.25–0.5%
IsoleucineKey activeEffect: HighAn amino acid that can help attract water to the upper layer of the skin and support skin's barrier function~0.25–0.5%
Lysine hclKey activeEffect: High~0.35–0.6%
Palmitoyl tetrapeptide-7Hero· EmollientEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.5–0.75%
Palmitoyl tripeptide-5HeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.45–0.7%
PhytosphingosineHero· EmollientEffect: HighA type of lipid that is naturally present in skin. It might help in repairing skin barrier function and has anti-bacterial effect~0.3–0.6%
SerineKey activeEffect: HighAn amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles~0.25–0.5%
Sh-polypeptide-1HeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.6–0.85%
Sh-polypeptide-9HeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.5–0.8%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.4–0.65%
ThreonineKey activeEffect: HighAn amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles~0.3–0.55%
Sh-oligopeptide-2HeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.7–1.05%
AlanineKey active· HumectantEffect: HighAn amino-acid that helps to attract water to the upper layer of the skin and might help to lighten the skin, but solid evidence is lacking~0.3–0.6%
ArginineKey active· Humectant, OcclusiveEffect: HighAn amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin~0.3–0.55%
Elaeis guineensis oilKey active· EmollientEffect: MediumHelps soften the upper layer of the skin~2.1–2.5%
Adansonia digitata seed oilKey active· EmollientEffect: MediumHelps soften the upper layer of the skin~0.3–0.55%
ProlineKey activeEffect: Medium~0.3–0.55%
Polyglyceryl-6 distearateEffect: LowHelps oil and water mix together while softening the upper layer of the skin~0.3–0.55%
Polyglyceryl-10 stearateEffect: LowHelps water and oil mix together and softens the upper layer of the skin~1.7–2.1%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.3–0.55%
Lecithin· EmollientEffect: LowUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~1–1.2%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~0.3–0.5%
AllantoinUnder-dosedEffect: HighHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.2–0.4%
Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~1.4–1.7%
Anti-oxidation
Not advertised by the brand · 6 ingredients credited for this claim
Strong support

This product contains antioxidants (ferulic acid, resveratrol) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

Ferulic acidKey activeEffect: HighA potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%~0.25–0.5%
ResveratrolKey activeEffect: HighHelps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone~0.25–0.45%
Butyrospermum parkii butterEffect: LowA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~4.6–5.6%
TaurineEffect: LowCould be helpful in reducing inflammation in skin, evening out the skin tone and neutralizing free radicals, but more research is needed to confirm its effectiveness~0.3–0.55%
ErgothioneineUnder-dosedEffect: HighCan help neutralize free radicals in skin. Preliminary studies show that it can be more effective than coenzyme Q10 but studies on effective concentration for topical applications are lacking~0.2–0.35%
Rosmarinus officinalis leaf extractEffect: Low, below effective doseCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating~0.15–0.3%
Anti-aging
Not advertised by the brand · 12 ingredients credited for this claim
Moderate support

This product contains ferulic acid, palmitoyl tetrapeptide-7, palmitoyl tripeptide-5, resveratrol, serine, sh-oligopeptide-2, sh-polypeptide-1, sh-polypeptide-9, threonine. These ingredients might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.

Sh-polypeptide-1Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.6–0.85%
Sh-polypeptide-9Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.5–0.8%
Ferulic acidKey activeEffect: MediumA potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%~0.25–0.5%
Palmitoyl tetrapeptide-7Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.5–0.75%
Palmitoyl tripeptide-5Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.45–0.7%
ResveratrolKey activeEffect: MediumHelps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone~0.25–0.45%
ThreonineKey activeEffect: MediumAn amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles~0.3–0.55%
SerineKey activeEffect: MediumAn amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles~0.25–0.5%
Sh-oligopeptide-2Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.7–1.05%
Butyrospermum parkii butterEffect: LowA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~4.6–5.6%
Retinyl palmitateUnder-dosedEffect: MediumThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect~0.25–0.45%
Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~1.4–1.7%
Evens skin tone
Not advertised by the brand · 5 ingredients credited for this claim
Moderate support

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: alanine, ferulic acid, resveratrol.

Ferulic acidKey activeEffect: MediumA potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%~0.25–0.5%
AlanineEffect: LowAn amino-acid that helps to attract water to the upper layer of the skin and might help to lighten the skin, but solid evidence is lacking~0.3–0.6%
ResveratrolEffect: LowHelps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone~0.25–0.45%
TaurineEffect: LowCould be helpful in reducing inflammation in skin, evening out the skin tone and neutralizing free radicals, but more research is needed to confirm its effectiveness~0.3–0.55%
Retinyl palmitateUnder-dosedEffect: MediumThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect~0.25–0.45%

Can it cause trouble?

Irritancy
3 strong irritants: Lavandula angustifolia oil, Retinyl palmitate + 1 more — patch-test recommended
High risk
We flagged 14 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Lavandula angustifolia oilAn essential oil. Potential allergen and can be irritating. It has some anti-bacterial propertiesHigh~0.25–0.5%est.
Retinyl palmitateThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effectHigh~0.25–0.45%est.
Rosmarinus officinalis leaf extractCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritatingHigh~0.15–0.3%est.
Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~5.5–6.7%est.
Polyglyceryl-10 stearateHelps water and oil mix together and softens the upper layer of the skinMedium~1.7–2.1%est.
Aloe barbadensis leaf juiceTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~1.4–1.7%est.
TaurineCould be helpful in reducing inflammation in skin, evening out the skin tone and neutralizing free radicals, but more research is needed to confirm its effectivenessMedium~0.3–0.55%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.3–0.55%est.
Polyglyceryl-6 distearateHelps oil and water mix together while softening the upper layer of the skinMedium~0.3–0.55%est.
Adansonia digitata seed oilHelps soften the upper layer of the skinMedium~0.3–0.55%est.
ResveratrolHelps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin toneMedium~0.25–0.45%est.
Acrylates/c10-30 alkyl acrylate crosspolymerMaintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix togetherMedium~0.2–0.35%est.
EthylhexylglycerinA preservativeMedium~0.1–0.2%est.
Caprylhydroxamic acidA preservativeMedium~0.1–0.15%est.
Comedogenic
2 ingredients rated 2 or more on the 0–5 pore-clogging scale
2 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Butyrospermum parkii butterA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals3/5~4.6–5.6%est.
Cocos nucifera oilAn emollient. Found to be as effective as a moisturizer for dry skin as mineral oil. Could be comedogenic3/5~3.3–4%est.
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Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Caprylic/capric triglyceride~5.5–6.7%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride
Butyrospermum parkii butter~4.6–5.6%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-oxidationAnti-aging

A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals

More about Butyrospermum parkii butter
Cocos nucifera oil~3.3–4%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
Moisturizing

An emollient. Found to be as effective as a moisturizer for dry skin as mineral oil. Could be comedogenic

More about Cocos nucifera oil
Glycerin~2.5–3.1%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Elaeis guineensis oil~2.1–2.5%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Elaeis guineensis oil
Polyglyceryl-10 stearate~1.7–2.1%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps water and oil mix together and softens the upper layer of the skin

More about Polyglyceryl-10 stearate
Aloe barbadensis leaf juice~1.4–1.7%
Irritant · medium
Irritation risk
Medium
Works for
MoisturizingAntibacterialAnti-inflammatoryReduces rednessReduces irritationAnti-blemishAnti-aging

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis leaf juice
Propanediol~1.2–1.5%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Lecithin~1–1.2%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin

More about Lecithin
Peptide-rich plasma
Not recognized
Sh-oligopeptide-2~0.7–1.05%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Sh-oligopeptide-2
Sh-polypeptide-1~0.6–0.85%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Sh-polypeptide-1
Sh-polypeptide-9~0.5–0.8%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Sh-polypeptide-9
Sh-polypeptide-7 sh-oligopeptide-1~0.5–0.75%
Formula
Irritation risk
Low
More about Sh-polypeptide-7 sh-oligopeptide-1
Palmitoyl tripeptide-5~0.45–0.7%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Palmitoyl tripeptide-5
Palmitoyl tetrapeptide-7~0.5–0.75%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Palmitoyl tetrapeptide-7
Acetyl glutamine~0.45–0.65%
Formula
Irritation risk
Low
More about Acetyl glutamine
Sodium hyaluronate~0.4–0.65%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate
Lysine hcl~0.35–0.6%
Key active
Irritation risk
Low
Works for
Moisturizing
More about Lysine hcl
Alanine~0.3–0.6%
Key active
Irritation risk
Low
Works for
MoisturizingEvens skin tone

An amino-acid that helps to attract water to the upper layer of the skin and might help to lighten the skin, but solid evidence is lacking

More about Alanine
Histidine hcl~0.3–0.55%
Key active
Irritation risk
Low
Works for
Moisturizing

A salt of an amino-acid that helps attract water to the upper layer of the skin. Might be helpful in restoring the skin barrier function

More about Histidine hcl
Arginine~0.3–0.55%
Key active
Irritation risk
Low
Works for
Moisturizing

An amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin

More about Arginine
Serine~0.25–0.5%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-aging

An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles

More about Serine
Proline~0.3–0.55%
Key active
Irritation risk
Low
Works for
Moisturizing
More about Proline
Glutamic acid~0.3–0.55%
Key active
Irritation risk
Low
Works for
Moisturizing

An amino-acid that helps attract water to the upper layer of the skin

More about Glutamic acid
Threonine~0.3–0.55%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-aging

An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles

More about Threonine
Valine~0.25–0.5%
Formula
Irritation risk
Low
More about Valine
Leucine~0.25–0.5%
Formula
Irritation risk
Low
More about Leucine
Glycine~0.25–0.5%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps to attract water to the upper layer of the skin and can help restore the skin barrier function

More about Glycine
Isoleucine~0.25–0.5%
Key active
Irritation risk
Low
Works for
Moisturizing

An amino acid that can help attract water to the upper layer of the skin and support skin's barrier function

More about Isoleucine
Phenylalanine~0.3–0.5%
Formula
Irritation risk
Low
More about Phenylalanine
Taurine~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidationAnti-inflammatoryAnti-blemishEvens skin tone

Could be helpful in reducing inflammation in skin, evening out the skin tone and neutralizing free radicals, but more research is needed to confirm its effectiveness

More about Taurine
Bacillus/folic acid ferment filtrate extract~0.25–0.5%
Formula
Irritation risk
Low
More about Bacillus/folic acid ferment filtrate extract
Caprylyl glycol~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Butylene glycol~0.3–0.5%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Polysorbate 20~0.3–0.55%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 20
Polyglyceryl-6 distearate~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
CleansingMoisturizing

Helps oil and water mix together while softening the upper layer of the skin

More about Polyglyceryl-6 distearate
Glycosphingolipids~0.3–0.55%
Key active
Irritation risk
Low
Works for
Moisturizing

A type of lipids naturally present in skin. They can be converted to ceramides in skin

More about Glycosphingolipids
Glycolipids~0.25–0.5%
Formula
Irritation risk
Low
More about Glycolipids
Methylglucoside phosphate~0.25–0.5%
Formula
Irritation risk
Low
More about Methylglucoside phosphate
Copper lysinate/prolinate~0.25–0.5%
Formula
Irritation risk
Low
More about Copper lysinate/prolinate
Hydrolyzed hyaluronic acid~0.25–0.5%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin

More about Hydrolyzed hyaluronic acid
Lavandula angustifolia oil~0.25–0.5%
Irritant · high
Irritation risk
High

An essential oil. Potential allergen and can be irritating. It has some anti-bacterial properties

More about Lavandula angustifolia oil
Phytosphingosine~0.3–0.6%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-blemishAnti-inflammatory

A type of lipid that is naturally present in skin. It might help in repairing skin barrier function and has anti-bacterial effect

More about Phytosphingosine
Ferulic acid~0.25–0.5%
Key active
Irritation risk
Low
Works for
Anti-oxidationAnti-agingEvens skin toneAnti-inflammatory

A potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%

More about Ferulic acid
Retinyl palmitate~0.25–0.45%
Under-dosedIrritant · high
Irritation risk
High
Works for
Evens skin toneAnti-blemishAnti-agingExfoliation

Three steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect

More about Retinyl palmitate
Adansonia digitata seed oil~0.3–0.55%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Adansonia digitata seed oil
Hydrolyzed linseed extract~0.25–0.45%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Hydrolyzed linseed extract
Allantoin~0.2–0.4%
Under-dosed
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryReduces rednessAnti-blemishReduces irritationExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin
Resveratrol~0.25–0.45%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidationAnti-agingEvens skin tone

Helps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone

More about Resveratrol
Pichia/resveratrol ferment extract~0.25–0.45%
Formula
Irritation risk
Low
More about Pichia/resveratrol ferment extract
Ergothioneine~0.2–0.35%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidation

Can help neutralize free radicals in skin. Preliminary studies show that it can be more effective than coenzyme Q10 but studies on effective concentration for topical applications are lacking

More about Ergothioneine
Rosmarinus officinalis leaf extract~0.15–0.3%
Irritant · high
Irritation risk
High
Works for
Anti-blemishAnti-oxidationAntibacterial

Can be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating

More about Rosmarinus officinalis leaf extract
Xanthan gum~0.15–0.3%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Acrylates/c10-30 alkyl acrylate crosspolymer~0.2–0.35%
Irritant · medium
Irritation risk
Medium

Maintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix together

More about Acrylates/c10-30 alkyl acrylate crosspolymer
Sodium hydroxide~0.15–0.3%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Ethylhexylglycerin~0.1–0.2%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Caprylhydroxamic acid~0.1–0.15%
Irritant · medium
Irritation risk
Medium

A preservative

More about Caprylhydroxamic acid
Ingredient list view

Water, Caprylic/capric triglyceride, Butyrospermum parkii butter, Cocos nucifera oil, Glycerin, Elaeis guineensis oil, Polyglyceryl-10 stearate, Aloe barbadensis leaf juice, Propanediol, Lecithin, Unknown, Sh-oligopeptide-2, Sh-polypeptide-1, Sh-polypeptide-9, Sh-polypeptide-7 sh-oligopeptide-1, Palmitoyl tripeptide-5, Palmitoyl tetrapeptide-7, Acetyl glutamine, Sodium hyaluronate, Lysine hcl, Alanine, Histidine hcl, Arginine, Serine, Proline, Glutamic acid, Threonine, Valine, Leucine, Glycine, Isoleucine, Phenylalanine, Taurine, Bacillus/folic acid ferment filtrate extract, Caprylyl glycol, Butylene glycol, Polysorbate 20, Polyglyceryl-6 distearate, Glycosphingolipids, Glycolipids, Methylglucoside phosphate, Copper lysinate/prolinate, Hydrolyzed hyaluronic acid, Lavandula angustifolia oil, Phytosphingosine, Ferulic acid, Retinyl palmitate, Adansonia digitata seed oil, Hydrolyzed linseed extract, Allantoin, Resveratrol, Pichia/resveratrol ferment extract, Ergothioneine, Rosmarinus officinalis leaf extract, Xanthan gum, Acrylates/c10-30 alkyl acrylate crosspolymer, Sodium hydroxide, Ethylhexylglycerin, Caprylhydroxamic acid

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Product summary

"Eighth Day 2.0 - The Intensive Moisturizer" has a good moisturizing formula. As we expect from a proper moisturizer, the formula includes a combo of effective humectants and emollients. These are the two different types of ingredients that are essential for improving the skin hydration and supporting a healthy skin barrier. Alanine, arginine, glutamic acid, glycerin and glycine in this product (humectants) attract water molecules to the upper layer of the skin (the water comes from the outside air or from the deeper layers of the skin if the air is dry). Emollients in this formulation (palmitoyl tetrapeptide-7, phytosphingosine, glycosphingolipids, arginine and butyrospermum parkii butter) help to reduce the moisture loss from the skin. They also soften the skin surface and relieve the feeling of dryness and tightness.

Ingredient callouts

  • this moisturizer includes a form of Retinoids (vitamin A) - retinyl palmitate 0.25% - 0.45%, but this type of vitamin A is not very effective. It could in theory help with fine lines and wrinkles, but the effect is most likely minimal.
  • Another benefit is that this moisturizer contain ceramides (phytosphingosine 0.30% - 0.60%). Ceramides are an important part of our natural skin barrier. The Ceramides used in skincare are synthetic or come from plants. They help soften the skin and can help "fill the gaps" in the skin barrier, keeping the skin hydrated and resilient for longer.
  • We like that this moisturizer contains peptides (palmitoyl tetrapeptide-7 0.50% - 0.75%, palmitoyl tripeptide-5 0.45% - 0.70%, sh-polypeptide-9 0.50% - 0.80%, sh-polypeptide-1 0.60% - 0.85% and sh-oligopeptide-2 0.70% - 1.05%). There are many different kind of Peptides and they are naturally present in our skin. They all are a combination of aminoacids. Some of them work as natural antibiotics, promote wound-healing and production of collagen. The science is still not settled on how effective Peptides are in skincare, but it is very likely that they have a benefit. Peptides might help restore the skin barrier and fight the signs of aging. At the very least, Peptides work as humectants: they attract water to the upper layer of the skin and improve its hydration.
This product contains ingredients that could be beneficial, but their concentrations are too low in this formulation: ergothioneine and allantoin

Irritation risk

This moisturizer contains some common irritants, including those without a benefit for the skin. We assess the overall irritancy of this moisturizer to be high. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 31 studies and safety reviews.

  1. 1
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  2. 2
    Genetic Architecture of Palm Oil Fatty Acid Composition in Cultivated Oil Palm (Elaeis guineensis Jacq.) Compared to Its Wild Relative E. oleifera (H.B.K) Cortésjournals.plos.org
  3. 3
    Nutrient composition of Nigerian palm kernel from the dura and tenera varieties of the oil palm (Elaeis guineensis)sciencedirect.com
  4. 4
    Safety Assessment of Polyglyceryl Fatty Acid Esters as Used in Cosmeticscir-safety.org
  5. 5
    Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
  6. 6
    Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin careresearchgate.net
Eighth Day 2.0 The Intensive Moisturizer
Eighth Day 2.0The Intensive Moisturizer
Buy at Eighth Day$290.00Amazon

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Buy at Eighth Day$290.00Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.