Ren Skincare

Flash Hydro-Boost Instant Plumping Emulsion

Name: Ren Skincare - Flash Hydro-Boost Instant Plumping Emulsion
Brand: Ren Skincare

Efficacy 62/100·High irritancy · In 1 routines

Efficacy measures how well the formula delivers the claims the brand advertises · 1 of 2 advertised claims delivered

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Product claims breakdown

Moisturizing

14 ingredients contribute at the levels below

Good evidence

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: anhydroxylitol, 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.

ANHYDROXYLITOLRole: HeroHelps attract water to the upper layer of the skin and repair the skin barrir function~0.6–0.95%

ARGININERole: Key activeAn 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~2–2.5%

BUTYROSPERMUM PARKII BUTTERRole: Key activeA 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~3.3–4.1%

GLYCERINRole: Key activeOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4.3–5.2%

HELIANTHUS ANNUUS SEED OILRole: Key activeA great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function~0.3–0.55%

MYRISTYL MYRISTATERole: Key activeAn emollient. Is not recommended for acne-prone skin as it can be comedogenic~1.1–1.4%

ORYZA SATIVA BRAN OILRole: Key activeHelps soften the upper layer of the skin and might have some anti-oxidant properties~0.9–1.1%

SODIUM HYALURONATERole: Key activeOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.35–0.65%

SOY AMINO ACIDSRole: Key activeHelp attract water to the upper layer of the skin~0.35–0.65%

SQUALANERole: Key activeAn 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.~5.1–6.3%

TOCOPHEROLRole: Under-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~0.4–0.6%

VACCINIUM MACROCARPON SEED OILRole: Key activeA plant oil that can help neutralize free radicals, soften the upper layer of the skin, and support skin's barrier function~0.45–0.7%

XYLITYLGLUCOSIDERole: Key activeHelps attract water to the upper layer of the skin and repair the skin barrier function~1.5–1.8%

YEAST EXTRACTRole: Under-dosedHelps attract water to the upper layer of the skin and might have some anti-oxidant and skin lightening properties. It can help calm down inflammation in skin~0.55–0.8%

Anti-aging

2 ingredients contribute at the levels below

Partial evidence

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.

TOCOPHEROLRole: Under-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~0.4–0.6%

SqualaneRole: Key activeAn 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.~5.1–6.3%

GlycerinRole: Key activeOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4.3–5.2%

ArginineRole: Key activeAn 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~2–2.5%

XylitylglucosideRole: Key activeHelps attract water to the upper layer of the skin and repair the skin barrier function~1.5–1.8%

Cetearyl alcoholRole: Key activeA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~1.4–1.7%

Myristyl myristateRole: Key activeAn emollient. Is not recommended for acne-prone skin as it can be comedogenic~1.1–1.4%

Oryza sativa bran oilRole: Key activeHelps soften the upper layer of the skin and might have some anti-oxidant properties~0.9–1.1%

Oryza sativa germ oilRole: Key active~0.7–1.05%

AnhydroxylitolRole: Key activeHelps attract water to the upper layer of the skin and repair the skin barrir function~0.6–0.95%

PhospholipidsRole: Key activeEmollients that are naturaly present in skin. In addition, they help water and oil mix together in the product~0.45–0.7%

Vaccinium macrocarpon seed oilRole: Key activeA plant oil that can help neutralize free radicals, soften the upper layer of the skin, and support skin's barrier function~0.45–0.7%

Sodium hyaluronateRole: Key activeOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.35–0.65%

Soy amino acidsRole: Key activeHelp attract water to the upper layer of the skin~0.35–0.65%

GlucoseRole: Key activeHelps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function~0.4–0.6%

Helianthus annuus seed oilRole: Key activeA great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function~0.3–0.55%

Rosmarinus officinalis leaf extractRole: Key activeCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating~0.2–0.4%

Irritancy

17 flagged ingredients — patch-test recommended

High risk

We flagged 17 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

Oleyl alcoholUsed as a fragranceHigh~2.4–2.9%est.

AlcoholCan be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial propertiesHigh~0.55–0.8%est.

ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.35–0.65%est.

Rosmarinus officinalis leaf extractCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritatingHigh~0.2–0.4%est.

Benzyl salicylateA fragrance. Is a likely irritantHigh~0.15–0.3%est.

CitronellolA fragrance. Can be irritatingHigh~0.15–0.25%est.

GeraniolA fragrance. Can be irritatingHigh~0.15–0.25%est.

LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.15–0.25%est.

LinaloolA fragrance. Can be irritatingHigh~0.1–0.15%est.

ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.1–0.15%est.

Cetyl phosphateHelps oil and water mix togetherLow~1.7–2.1%est.

Myristyl myristateAn emollient. Is not recommended for acne-prone skin as it can be comedogenicLow~1.1–1.4%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 functionLow~0.45–0.7%est.

Glyceryl laurateHelps water and oil mix together and has an anti-microbial effect helping to preserve product formulationsLow~0.45–0.7%est.

Benzoic acidA preservativeLow~0.25–0.5%est.

Dehydroacetic acidA preservativeLow~0.3–0.55%est.

Potassium sorbateA preservativeLow~0.3–0.55%est.

Comedogenic

4 ingredients can clog pores in acne-prone skin

High risk

These ingredients have a comedogenic rating ≥ 2. In leave-on products at higher concentrations they can clog pores for acne-prone skin types.

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 radicalsHigh~3.3–4.1%est.

Oleyl alcoholUsed as a fragranceHigh~2.4–2.9%est.

Myristyl myristateAn emollient. Is not recommended for acne-prone skin as it can be comedogenicHigh~1.1–1.4%est.

Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product textureMed~1.4–1.7%est.

~ marks concentrations estimated from label position and typical use levels