Kiehl's Glow Formula Skin Hydrator

Kiehl's Glow Formula Skin Hydrator

Efficacy41/100IrritancyHigh

Works for

Moisturizing
Glycerin, Caprylic/capric triglyceride + 10 more
Works
What the product description says
“Delivering an instant hydration boost, it helps to lock in moisture and keep the skin feeling fresh for up to 24 hours.”
Source: SpaceNK

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: glycerin, caprylyl glycol.

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: caprylic/capric triglyceride, squalane.

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~3.1–3.8%
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~2.5–3.1%
SqualaneKey active· Emollient, OcclusiveEffect: HighAn oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.~2.1–2.6%
Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~0.6–0.95%
Glycine soja oilKey active· EmollientEffect: HighA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.~0.2–0.4%
Dicaprylyl carbonate· EmollientEffect: LowHelps products spread more easily and works as an emollient to soften skin~5.5–6.8%
Octyldodecanol· EmollientEffect: LowAn emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation~4.2–5.1%
Glyceryl stearate· EmollientEffect: LowAn emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together~1.7–2.1%
Arachidyl alcohol· EmollientEffect: LowUsed to soften the upper layer of the skin and create a thicker product consistency~0.75–1.1%
Behenyl alcohol· Emollient, OcclusiveEffect: LowNon-drying alcohol that helps water and oil mix together. Also serves as an emollient~0.5–0.75%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.3–0.5%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.5–0.7%
Anti-aging
Tocopherol
Not delivered
What the product description says
“Featuring illuminating minerals to further enhance brightness, Kiehl’s Glow Formula Skin Hydrator is a sophisticated product that works to make the wearer look energetic, youthful and thoroughly refreshed.”
Source: SpaceNK

This product does not contain ingredients that are able to reduce fine lines and wrinkles or help with skin elasticity, but it can improve the look of the skin temporarily through moisturization. Well-moisturized skin might also be able to repair the sun damage better.

This ingredient malpighia punicifolia fruit extract might be able to help neutralize free radicals in skin and help it fight off some of the sun damage.

TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.5–0.7%
Evens skin tone
No ingredient credited for this claim
Not delivered
What the product description says
“Long prized as an ingredient in cosmetics, pomegranate helps to condition the skin, banish the signs of fatigue and even out the skin tone to create a radiant glow.”
Source: SpaceNK

Effective ingredients missing or their concentration is too low

Anti-oxidation
Not advertised by the brand · Malpighia punicifolia fruit extract, Salix alba bark extract + 2 more
May help

This product contains antioxidants (malpighia punicifolia fruit extract) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

Malpighia punicifolia fruit extractKey activeEffect: MediumA fruit extract that might help neutralize free radicals. The concentrations typically used in cosmetics are too small to have an effect~0.1–0.15%
Salix alba bark extractEffect: LowA plant extract that can help neutralize free radicals in skin. It contains a compound salicin that can theoretically be converted into salicylic acid that, in turn, helps reduce inflammation in skin, but the evidence of effectiveness in skin is lacking and the extract is usually not used in a concentration that would enable an exfoliating effect~0.95–1.15%
Punica granatum fruit extractEffect: LowA fruit extract that is used to add a fragrance to the product. It might have some antioxidant properties~0.1–0.2%
TocopherolUnder-dosedPure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.5–0.7%

Can it cause trouble?

Irritancy
4 strong irritants: Parfum, Limonene + 2 more — patch-test recommended
High risk
We flagged 12 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Salix alba bark extractA plant extract that can help neutralize free radicals in skin. It contains a compound salicin that can theoretically be converted into salicylic acid that, in turn, helps reduce inflammation in skin, but the evidence of effectiveness in skin is lacking and the extract is usually not used in a concentration that would enable an exfoliating effectHigh~0.95–1.15%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.4–0.6%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.25–0.45%est.
CitralA fragrance with a lemon scent. A likely irritantHigh~0.15–0.25%est.
LinaloolA fragrance. Can be irritatingHigh~0.1–0.2%est.
Punica granatum fruit extractA fruit extract that is used to add a fragrance to the product. It might have some antioxidant propertiesHigh~0.1–0.2%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~2.5–3.1%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.4–0.6%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.3–0.5%est.
Potassium sorbateA preservativeMedium~0.2–0.4%est.
Glycine soja oilA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.Medium~0.2–0.4%est.
Phytic acidAn alpha-hydroxy acid (AHA), but is mostly used to stabilize product formulations in cosmeticsMedium~0.2–0.35%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
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~0.6–0.95%est.
Glycine soja oilA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.2/5~0.2–0.4%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
Dicaprylyl carbonate~5.5–6.8%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps products spread more easily and works as an emollient to soften skin

More about Dicaprylyl carbonate
Octyldodecanol~4.2–5.1%
Formula
Irritation risk
Low
Works for
Moisturizing

An emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation

More about Octyldodecanol
Glycerin~3.1–3.8%
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
Caprylic/capric triglyceride~2.5–3.1%
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
Squalane~2.1–2.6%
Key active
Irritation risk
Low
Works for
Moisturizing

An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.

More about Squalane
Glyceryl stearate~1.7–2.1%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together

More about Glyceryl stearate
Propanediol~1.5–1.8%
Formula
Irritation risk
Low

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

More about Propanediol
Salix alba bark extract~0.95–1.15%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatoryAnti-oxidationAnti-blemishExfoliation

A plant extract that can help neutralize free radicals in skin. It contains a compound salicin that can theoretically be converted into salicylic acid that, in turn, helps reduce inflammation in skin, but the evidence of effectiveness in skin is lacking and the extract is usually not used in a concentration that would enable an exfoliating effect

More about Salix alba bark extract
Mica~1.1–1.4%
Formula
Irritation risk
Low

Creates an illusion of smoother and more radiant skin tone. Adds shimmer to the skin by reflecting light

More about Mica
Arachidyl alcohol~0.75–1.1%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to soften the upper layer of the skin and create a thicker product consistency

More about Arachidyl alcohol
Titanium dioxide~0.8–1.2%
Formula
Irritation risk
Low
Works for
Sun protection

Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin

More about Titanium dioxide
Cetearyl alcohol~0.6–0.95%
Key activeComedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
Works for
CleansingMoisturizing

A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture

More about Cetearyl alcohol
Tocopherol~0.5–0.7%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationAnti-inflammatoryMoisturizingAnti-aging

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol
Behenyl alcohol~0.5–0.75%
Formula
Irritation risk
Low
Works for
Moisturizing

Non-drying alcohol that helps water and oil mix together. Also serves as an emollient

More about Behenyl alcohol
Parfum~0.4–0.6%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Citric acid~0.4–0.6%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Sodium hydroxide~0.35–0.65%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Arachidyl glucoside~0.35–0.6%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Arachidyl glucoside
Limonene~0.25–0.45%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Caprylyl glycol~0.3–0.5%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Xanthan gum~0.25–0.45%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Iron oxides~0.2–0.35%
Formula
Irritation risk
Low
Works for
Sun protection

An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear

More about Iron oxides
Potassium sorbate~0.2–0.4%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Malus domestica fruit cell culture extract~0.2–0.35%
Formula
Glycine soja oil~0.2–0.4%
Key activeComedogenic 2/5Irritant · medium
Irritation risk
Medium
Comedogenicity
2/5
Works for
Moisturizing

A good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.

More about Glycine soja oil
Phytic acid~0.2–0.35%
Irritant · medium
Irritation risk
Medium

An alpha-hydroxy acid (AHA), but is mostly used to stabilize product formulations in cosmetics

More about Phytic acid
Citral~0.15–0.25%
Irritant · high
Irritation risk
High

A fragrance with a lemon scent. A likely irritant

More about Citral
Sodium benzoate~0.15–0.25%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Linalool~0.1–0.2%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Punica granatum fruit extract~0.1–0.2%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A fruit extract that is used to add a fragrance to the product. It might have some antioxidant properties

More about Punica granatum fruit extract
Malpighia punicifolia fruit extract~0.1–0.15%
Key active
Irritation risk
Low
Works for
Anti-oxidation

A fruit extract that might help neutralize free radicals. The concentrations typically used in cosmetics are too small to have an effect

More about Malpighia punicifolia fruit extract
Ingredient list view

Water, Dicaprylyl carbonate, Octyldodecanol, Glycerin, Caprylic/capric triglyceride, Squalane, Glyceryl stearate, Propanediol, Salix alba bark extract, Mica, Arachidyl alcohol, Titanium dioxide, Cetearyl alcohol, Tocopherol, Behenyl alcohol, Parfum, Citric acid, Sodium hydroxide, Arachidyl glucoside, Limonene, Caprylyl glycol, Xanthan gum, Iron oxides, Potassium sorbate, Malus domestica fruit cell culture extract, Glycine soja oil, Phytic acid, Citral, Sodium benzoate, Linalool, Punica granatum fruit extract, Malpighia punicifolia fruit extract

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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
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Match—40%39%39%
Price$41.00—$58.00+$17.00—
Shared key ingredients—4 of 74 of 73 of 7
Key difference—Salicylic AcidTetrahexyldecyl AscorbateCeramide Ns
Irritancy High Medium Medium Medium
Drying alcohol————
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Kiehl's Glow Formula Skin Hydrator
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