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Ren Skincare Ultra Moisture Day Cream
Ren Skincare

Ren Skincare Ultra Moisture Day Cream

Efficacy62/100IrritancyHigh
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Works for

1 of 2 advertised claims delivered

Moisturizing
Laminaria ochroleuca extract, Sodium hyaluronate + 14 more
Good evidence
What the product description says
“Ultra Moisture Day Cream”
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: betaine, glycerin.

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: butyrospermum parkii butter, caprylic/capric triglyceride.

Laminaria ochroleuca extractKey activeEffect: HighHelps attract water to the upper layer of the skin~0.15–0.25%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.25–0.5%
TriheptanoinKey activeEffect: HighA synthetic triglyceride. Helps soften the upper layer of the skin~0.65–1%
Vaccinium macrocarpon seed oilKey active· EmollientEffect: HighA plant oil that can help neutralize free radicals, soften the upper layer of the skin, and support skin's barrier function~0.45–0.65%
BetaineKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and improves the product texture~0.55–0.8%
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~2.1–2.5%
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~6.3–7.7%
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%
Myristyl myristateKey active· Emollient, OcclusiveEffect: HighAn emollient. Is not recommended for acne-prone skin as it can be comedogenic~1.3–1.6%
Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~3.7–4.5%
Cetearyl ethylhexanoate· EmollientEffect: LowAn emollient that helps soften the skin~3.2–3.9%
Lauryl laurateEffect: LowHelps soften the upper layer of the skin~0.95–1.15%
Camellia oleifera seed oilUnder-dosedEffect: HighAn emollient that does not leave a greasy finish~1.7–2.1%
Rosa canina fruit oilUnder-dosedEffect: HighA great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritating~0.45–0.7%
LecithinEffect: Low, below effective doseUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~0.55–0.8%
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~0.25–0.45%
Anti-aging
Butyrospermum parkii butter, Tocopherol
Limited evidence
What the product description says
“Ren Ultra Moisture Day Cream also contains Ren’s Global Protection Complex, combining extracts from seaweed, cranberry seed oil, candle tree leaves and kudzu zymbiozome to provide protection against free radicals, UV damage and signs of premature ageing.”
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 - butyrospermum parkii butter - could be helpful for preventing or repairing signs of aging in theory, but there is no evidence that it actually works.

This ingredient vaccinium macrocarpon seed oil might be able to help neutralize free radicals in skin and help it fight off some of the sun damage.

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~2.1–2.5%
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~0.25–0.45%
Anti-oxidation
Not advertised by the brand · Vaccinium macrocarpon seed oil, Oryzanol + 5 more
Moderate evidence

This product contains antioxidants (vaccinium macrocarpon seed oil) 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.

Vaccinium macrocarpon seed oilKey activeEffect: MediumA plant oil that can help neutralize free radicals, soften the upper layer of the skin, and support skin's barrier function~0.45–0.65%
OryzanolEffect: LowAn anti-oxidant that helps stabilize product formulations. Might help neutralise free radicals in skin~0.45–0.65%
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~2.1–2.5%
Cassia alata leaf extractEffect: LowMight have some anti-oxidant properties. Can be used as a fragrance. Can be irritating~0.2–0.4%
TocopherolUnder-dosedEffect: HighPure 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~0.25–0.45%
Rosa canina fruit oilEffect: Low, below effective doseA great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritating~0.45–0.7%
Camellia oleifera seed oilEffect: Low, below effective doseAn emollient that does not leave a greasy finish~1.7–2.1%

Can it cause trouble?

Irritancy
6 strong irritants: Parfum, Rosa damascena extract + 4 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
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.25–0.45%est.
Rosa damascena extractOil of a very fragrant pink rose used as fragrance in cosmetics. Extensive research has shown it has mixed benefits. In the pro column, inhaling this flower’s scent seems to have relaxing properties and the plant’s petals contain skin-soothing and antioxidant compounds that can benefit skin. On the flipside, the numerous chemicals that create this rose’s distinctive fragrance pose a risk of causing skin aggravation.High~0.15–0.3%est.
Sodium hydroxymethylglycinateA preservative. Can be irritatingHigh~0.15–0.25%est.
LinaloolA fragrance. Can be irritatingHigh~0.1–0.2%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.1–0.15%est.
FarnesolAdded to create a nice product smell. Can be irritatingHigh~0.05–0.1%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~6.3–7.7%est.
Camellia oleifera seed oilAn emollient that does not leave a greasy finishMedium~1.7–2.1%est.
Cetearyl glucosideHelps water and oil in the product mix well together and improves product textureMedium~1.4–1.8%est.
Myristyl myristateAn emollient. Is not recommended for acne-prone skin as it can be comedogenicMedium~1.3–1.6%est.
Lauryl laurateHelps soften the upper layer of the skinMedium~0.95–1.15%est.
Rosa canina fruit oilA great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritatingMedium~0.45–0.7%est.
Vaccinium macrocarpon seed oilA plant oil that can help neutralize free radicals, soften the upper layer of the skin, and support skin's barrier functionMedium~0.45–0.65%est.
Cassia alata leaf extractMight have some anti-oxidant properties. Can be used as a fragrance. Can be irritatingMedium~0.2–0.4%est.
Comedogenic
4 ingredients rated 2 or more on the 0–5 pore-clogging scale
4 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 radicals3/5~2.1–2.5%est.
Myristyl myristateAn emollient. Is not recommended for acne-prone skin as it can be comedogenic3/5~1.3–1.6%est.
Laminaria ochroleuca extractHelps attract water to the upper layer of the skin3/5~0.15–0.25%est.
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~3.7–4.5%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~6.3–7.7%
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
Cetearyl alcohol~3.7–4.5%
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
Cetearyl ethylhexanoate~3.2–3.9%
Formula
Irritation risk
Low
Works for
Moisturizing

An emollient that helps soften the skin

More about Cetearyl ethylhexanoate
Glycerin~2.5–3%
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
Butyrospermum parkii butter~2.1–2.5%
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
Camellia oleifera seed oil~1.7–2.1%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidation

An emollient that does not leave a greasy finish

More about Camellia oleifera seed oil
Cetearyl glucoside~1.4–1.8%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil in the product mix well together and improves product texture

More about Cetearyl glucoside
Myristyl myristate~1.3–1.6%
Key activeComedogenic 3/5Irritant · medium
Irritation risk
Medium
Comedogenicity
3/5
Works for
Moisturizing

An emollient. Is not recommended for acne-prone skin as it can be comedogenic

More about Myristyl myristate
Lauryl laurate~0.95–1.15%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Lauryl laurate
Triheptanoin~0.65–1%
Key active
Irritation risk
Low
Works for
MoisturizingCleansing

A synthetic triglyceride. Helps soften the upper layer of the skin

More about Triheptanoin
Betaine~0.55–0.8%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin and improves the product texture

More about Betaine
Lecithin~0.55–0.8%
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
Oryzanol~0.45–0.65%
Formula
Irritation risk
Low
Works for
Anti-oxidation

An anti-oxidant that helps stabilize product formulations. Might help neutralise free radicals in skin

More about Oryzanol
Rosa canina fruit oil~0.45–0.7%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidation

A great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritating

More about Rosa canina fruit oil
Vaccinium macrocarpon seed oil~0.45–0.65%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidationAnti-inflammatory

A plant oil that can help neutralize free radicals, soften the upper layer of the skin, and support skin's barrier function

More about Vaccinium macrocarpon seed oil
Fagus sylvatica bud extract~0.35–0.6%
Formula
Irritation risk
Low
More about Fagus sylvatica bud extract
Safflower oil/palm oil aminopropanediol esters~0.3–0.6%
Formula
Irritation risk
Low
More about Safflower oil/palm oil aminopropanediol esters
Carbomer~0.3–0.55%
Formula
Irritation risk
Low
Works for
Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer
Parfum~0.25–0.45%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Sodium hyaluronate~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

More about Sodium hyaluronate
Tocopherol~0.25–0.45%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationAnti-agingAnti-inflammatoryMoisturizing

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
Cassia alata leaf extract~0.2–0.4%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

Might have some anti-oxidant properties. Can be used as a fragrance. Can be irritating

More about Cassia alata leaf extract
Phenoxyethanol~0.2–0.4%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Pueraria lobata symbiosome extract~0.2–0.4%
Formula
Irritation risk
Low
More about Pueraria lobata symbiosome extract
Rosa damascena extract~0.15–0.3%
Irritant · high
Irritation risk
High

Oil of a very fragrant pink rose used as fragrance in cosmetics. Extensive research has shown it has mixed benefits. In the pro column, inhaling this flower’s scent seems to have relaxing properties and the plant’s petals contain skin-soothing and antioxidant compounds that can benefit skin. On the flipside, the numerous chemicals that create this rose’s distinctive fragrance pose a risk of causing skin aggravation.

More about Rosa damascena extract
Sodium hydroxymethylglycinate~0.15–0.25%
Irritant · high
Irritation risk
High

A preservative. Can be irritating

More about Sodium hydroxymethylglycinate
Laminaria ochroleuca extract~0.15–0.25%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Laminaria ochroleuca extract
Linalool~0.1–0.2%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Limonene~0.1–0.15%
Irritant · high
Irritation risk
High

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

More about Limonene
Farnesol~0.05–0.1%
Irritant · high
Irritation risk
High

Added to create a nice product smell. Can be irritating

More about Farnesol
Ingredient list view

Water, Caprylic/capric triglyceride, Cetearyl alcohol, Cetearyl ethylhexanoate, Glycerin, Butyrospermum parkii butter, Camellia oleifera seed oil, Cetearyl glucoside, Myristyl myristate, Lauryl laurate, Triheptanoin, Betaine, Lecithin, Oryzanol, Rosa canina fruit oil, Vaccinium macrocarpon seed oil, Fagus sylvatica bud extract, Safflower oil/palm oil aminopropanediol esters, Carbomer, Parfum, Sodium hyaluronate, Tocopherol, Cassia alata leaf extract, Phenoxyethanol, Pueraria lobata symbiosome extract, Rosa damascena extract, Sodium hydroxymethylglycinate, Laminaria ochroleuca extract, Linalool, Limonene, Farnesol

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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 9 studies and safety reviews.

  1. 1
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  2. 2
    Antioxidant activity of gamma-oryzanol: Mechanism of action and its effect on oxidative stability of pharmaceutical oilssciencedirect.com
  3. 3
    Skin Anti-aging Assays of Proanthocyanidin Rich Red Rice Extract, Oryzanol and Other Phenolic Compoundsjournals.sagepub.com
  4. 4
    Wound‐healing Properties of the Oils of Vitis vinifera and Vaccinium macrocarpononlinelibrary.wiley.com
  5. 5
    BERRY SEEDS: A SOURCE OF SPECIALTY OILS WITH HIGH CONTENT OF BIOACTIVES AND NUTRITIONAL VALUEonlinelibrary.wiley.com
  6. 6
    Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
Ren Skincare Ultra Moisture Day Cream
Ren SkincareUltra Moisture Day Cream
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As an Amazon Associate, WIMJ earns from qualifying purchases.