Ren Skincare

Ren Skincare Flash Hydro-Boost Instant Plumping Emulsion

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

Efficacy62/100IrritancyHigh

See all ingredients In 1 routines

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Works for

1 of 2 advertised claims delivered

Moisturizing

18 ingredients credited for this claim

Good support

What the product description says

“Flash Hydro-Boost Instant Plumping Emulsion”

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: 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.

Oryza sativa bran oilKey active· EmollientEffect: HighHelps soften the upper layer of the skin and might have some anti-oxidant properties~0.9–1.1%

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.~5.1–6.3%

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~2–2.5%

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~3.3–4.1%

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~4.3–5.2%

Helianthus annuus seed oilKey active· Emollient, OcclusiveEffect: HighA 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 myristateKey active· Emollient, OcclusiveEffect: HighAn emollient. Is not recommended for acne-prone skin as it can be comedogenic~1.1–1.4%

Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.35–0.65%

Soy amino acidsKey active· HumectantEffect: HighHelp attract water to the upper layer of the skin~0.35–0.65%

AnhydroxylitolKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and repair the skin barrir function~0.6–0.95%

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~0.45–0.7%

XylitylglucosideKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and repair the skin barrier function~1.5–1.8%

Oryza sativa germ oilKey active· EmollientEffect: Medium~0.7–1.05%

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

GlucoseKey active· HumectantEffect: MediumHelps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function~0.4–0.6%

Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~1.4–1.7%

Yeast extractUnder-dosedEffect: HighHelps 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%

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~0.4–0.6%

Anti-aging

2 ingredients credited for this claim

Limited support

What the product description says

“Fine Lines and Wrinkles, Dullness, and Dryness Formulation.”

Source: Sephora

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~3.3–4.1%

Anti-oxidation

Not advertised by the brand · 6 ingredients credited for this claim

Moderate support

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~0.45–0.7%

OryzanolEffect: LowAn anti-oxidant that helps stabilize product formulations. Might help neutralise free radicals in skin~0.55–0.85%

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~0.4–0.6%

Yeast extractUnder-dosedEffect: MediumHelps 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%

Rosmarinus officinalis leaf extractEffect: Low, below effective doseCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating~0.2–0.4%

Can it cause trouble?

Irritancy

8 strong irritants: Alcohol, Parfum + 6 more — patch-test recommended

High risk

We flagged 16 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.

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

Myristyl myristateAn emollient. Is not recommended for acne-prone skin as it can be comedogenicMedium~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 functionMedium~0.45–0.7%est.

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

Benzoic acidA preservativeMedium~0.25–0.5%est.

Dehydroacetic acidA preservativeMedium~0.3–0.55%est.

Potassium sorbateA preservativeMedium~0.3–0.55%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 radicals3/5~3.3–4.1%est.

Oleyl alcoholUsed as a fragrance3/5~2.4–2.9%est.

Myristyl myristateAn emollient. Is not recommended for acne-prone skin as it can be comedogenic3/5~1.1–1.4%est.

Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~1.4–1.7%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

Squalane~5.1–6.3%

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

Glycerin~4.3–5.2%

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~3.3–4.1%

Key activeComedogenic 3/5

Irritation risk: Low
Comedogenicity: 3/5

Works for

MoisturizingAnti-agingAnti-oxidation

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

Oleyl alcohol~2.4–2.9%

Comedogenic 3/5Irritant · high

Irritation risk: High
Comedogenicity: 3/5

Used as a fragrance

More about Oleyl alcohol

Arginine~2–2.5%

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

Cetyl phosphate~1.7–2.1%

Irritant · medium

Irritation risk: Medium

Works for

Cleansing

Helps oil and water mix together

More about Cetyl phosphate

Xylitylglucoside~1.5–1.8%

Key active

Irritation risk: Low

Works for

Moisturizing

Helps attract water to the upper layer of the skin and repair the skin barrier function

More about Xylitylglucoside

Cetearyl alcohol~1.4–1.7%

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

Myristyl myristate~1.1–1.4%

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

Oryza sativa bran oil~0.9–1.1%

Key active

Irritation risk: Low

Works for

Moisturizing

Helps soften the upper layer of the skin and might have some anti-oxidant properties

More about Oryza sativa bran oil

Oryza sativa germ oil~0.7–1.05%

Key active

Irritation risk: Low

Works for

Moisturizing

More about Oryza sativa germ oil

Anhydroxylitol~0.6–0.95%

Key active

Irritation risk: Low

Works for

Moisturizing

Helps attract water to the upper layer of the skin and repair the skin barrir function

More about Anhydroxylitol

Oryzanol~0.55–0.85%

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

Vaccinium vitis-idaea seed oil~0.6–0.9%

Formula

Irritation risk: Low

More about Vaccinium vitis-idaea seed oil

Yeast extract~0.55–0.8%

Under-dosed

Irritation risk: Low

Works for

MoisturizingAnti-oxidationReduces irritationAnti-inflammatoryEvens skin tone

Helps 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

More about Yeast extract

Alcohol~0.55–0.8%

Irritant · high

Irritation risk: High

Works for

Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol

Carbomer~0.5–0.75%

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

Phospholipids~0.45–0.7%

Key active

Irritation risk: Low

Works for

Moisturizing

Emollients that are naturaly present in skin. In addition, they help water and oil mix together in the product

More about Phospholipids

Xylitol~0.45–0.65%

Formula

Irritation risk: Low

Helps attract water to the upper layer of the skin and repair the skin barrier function

More about Xylitol

Vaccinium macrocarpon seed oil~0.45–0.7%

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

Parfum~0.35–0.65%

Irritant · high

Irritation risk: High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum

Safflower oil/palm oil aminopropanediol esters~0.35–0.65%

Formula

Irritation risk: Low

More about Safflower oil/palm oil aminopropanediol esters

Sodium hyaluronate~0.35–0.65%

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

Soy amino acids~0.35–0.65%

Key active

Irritation risk: Low

Works for

Moisturizing

Help attract water to the upper layer of the skin

More about Soy amino acids

Glucose~0.4–0.6%

Key active

Irritation risk: Low

Works for

Moisturizing

Helps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function

More about Glucose

Glyceryl laurate~0.45–0.7%

Irritant · medium

Irritation risk: Medium

Works for

Cleansing

Helps water and oil mix together and has an anti-microbial effect helping to preserve product formulations

More about Glyceryl laurate

Tocopherol~0.4–0.6%

Under-dosed

Irritation risk: Low

Works for

Anti-oxidationMoisturizingAnti-agingAnti-inflammatory

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

Phenoxyethanol~0.4–0.6%

Formula

Irritation risk: Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol

Xanthan gum~0.35–0.65%

Formula

Irritation risk: Low

Works for

Cleansing

Used to create a thicker product consistency

More about Xanthan gum

Ceratonia siliqua seed extract~0.3–0.6%

Formula

Irritation risk: Low

More about Ceratonia siliqua seed extract

Benzoic acid~0.25–0.5%

Irritant · medium

Irritation risk: Medium

A preservative

More about Benzoic acid

Dehydroacetic acid~0.3–0.55%

Irritant · medium

Irritation risk: Medium

A preservative

More about Dehydroacetic acid

Potassium sorbate~0.3–0.55%

Irritant · medium

Irritation risk: Medium

A preservative

More about Potassium sorbate

Sodium benzoate~0.25–0.5%

Formula

Irritation risk: Low

A preservative

More about Sodium benzoate

Helianthus annuus seed oil~0.3–0.55%

Key active

Irritation risk: Low

Works for

Moisturizing

A 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

More about Helianthus annuus seed oil

Rosmarinus officinalis leaf extract~0.2–0.4%

Irritant · high

Irritation risk: High

Works for

Anti-blemishAntibacterialAnti-oxidation

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

More about Rosmarinus officinalis leaf extract

Benzyl salicylate~0.15–0.3%

Irritant · high

Irritation risk: High

A fragrance. Is a likely irritant

More about Benzyl salicylate

Citronellol~0.15–0.25%

Irritant · high

Irritation risk: High

A fragrance. Can be irritating

More about Citronellol

Geraniol~0.15–0.25%

Irritant · high

Irritation risk: High

A fragrance. Can be irritating

More about Geraniol

Limonene~0.15–0.25%

Irritant · high

Irritation risk: High

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

More about Limonene

Linalool~0.1–0.15%

Irritant · high

Irritation risk: High

A fragrance. Can be irritating

More about Linalool

Parfum~0.1–0.15%

Irritant · high

Irritation risk: High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum

Ingredient list view

Water, Squalane, Glycerin, Butyrospermum parkii butter, Oleyl alcohol, Arginine, Cetyl phosphate, Xylitylglucoside, Cetearyl alcohol, Myristyl myristate, Oryza sativa bran oil, Oryza sativa germ oil, Anhydroxylitol, Oryzanol, Vaccinium vitis-idaea seed oil, Yeast extract, Alcohol, Carbomer, Phospholipids, Xylitol, Vaccinium macrocarpon seed oil, Parfum, Safflower oil/palm oil aminopropanediol esters, Sodium hyaluronate, Soy amino acids, Glucose, Glyceryl laurate, Tocopherol, Phenoxyethanol, Xanthan gum, Ceratonia siliqua seed extract, Benzoic acid, Dehydroacetic acid, Potassium sorbate, Sodium benzoate, Helianthus annuus seed oil, Rosmarinus officinalis leaf extract, Benzyl salicylate, Citronellol, Geraniol, Limonene, Linalool, Parfum

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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
	Ren SkincareFlash Hydro-Boost Instant Plumping EmulsionYOUR PRODUCT	RhodeBarrier Restore Cream	BlissYouth Got This Moisturizer	LumeneNordic Hydra [Lähde] Intense Hydration 24 Hour Moisturiser
Match	—	55%	55%	54%
Price	$36.00	$58.90+$22.90	$27.76−$8.24	$26.99−$9.01
Shared key ingredients	—	6 of 15	7 of 15	7 of 15
Key difference	—	Niacinamide	Retinol	Urea
Irritancy	High	Medium	Medium	Medium
Drying alcohol	Contains drying alcohol	—	—	—
	View product	Shop	Shop	Shop

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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 23 studies and safety reviews.

1
Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
2
Safety Assessment of Alkyl Phosphates as Used in Cosmeticscir-safety.org
3
Study on the Composition of Rice Bran Oil and Its Higher Free Fatty Acids Valuelink.springer.com
4
Antioxidant activity of gamma-oryzanol: Mechanism of action and its effect on oxidative stability of pharmaceutical oilssciencedirect.com
5
Skin Anti-aging Assays of Proanthocyanidin Rich Red Rice Extract, Oryzanol and Other Phenolic Compoundsjournals.sagepub.com
6
The natural yeast extract isolated by ethanol precipitation inhibits melanin synthesis by modulating tyrosinase activity and downregulating melanosome transferncbi.nlm.nih.gov
7
Evaluation of dermatological effects of cosmetic formulations containing Saccharomyces cerevisiae extract and vitaminsresearchgate.net
8
Wound‐healing Properties of the Oils of Vitis vinifera and Vaccinium macrocarpononlinelibrary.wiley.com
9
BERRY SEEDS: A SOURCE OF SPECIALTY OILS WITH HIGH CONTENT OF BIOACTIVES AND NUTRITIONAL VALUEonlinelibrary.wiley.com
10
Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
11
Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin careresearchgate.net
12
Topical Glucose Induces Claudin-1 and Filaggrin Expression in a Mouse Model of Atopic Dermatitis and in Keratinocyte Culture, Exerting Anti-inflammatory Effects by Repairing Skin Barrier Functionncbi.nlm.nih.gov
13
Vitamin E in dermatologyncbi.nlm.nih.gov
14
Vitamin E and Skin Healthlpi.oregonstate.edu
15
4 Final Report on the Safety Assessment of Sodium Dehydroacetate and Dehydroacetic Acidjournals.sagepub.com
16
Effect of Olive and Sunflower Seed Oil on the Adult Skin Barrier: Implications for Neonatal Skin Careonlinelibrary.wiley.com
17
Topically Applied Sunflower Seed Oil Prevents Invasive Bacterial Infections in Preterm Infants in Egyptjournals.lww.com
18
Effect of topically applied lipids on surfactant-irritated skinonlinelibrary.wiley.com
19
Impact of topical oils on the skin barrier: possible implications for neonatal health in developing countriesonlinelibrary.wiley.com
20
Allergic contact dermatitis induced by rosemary leaf extract in a cleansing gelpubmed.ncbi.nlm.nih.gov
21
Safety Assessment of Rosmarinus officinalis (Rosemary)-Derived Ingredients as Used in Cosmeticsjournals.sagepub.com
22
Rosmarinus officinalis Extract Suppresses Propionibacterium acnes–Induced Inflammatory Responsesliebertpub.com
23
Annex I: Clinical evidence regarding sensitisation to individual fragrance chemicals and to natural extractsec.europa.eu

Ren SkincareFlash Hydro-Boost Instant Plumping Emulsion

Buy at Lookfantastic US$48.00 Amazon

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

Buy at Lookfantastic US$48.00 Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.