REYENA16 Daily UV Defense Sun Milk

REYENA16 Daily UV Defense Sun Milk

Efficacy100/100IrritancyHigh

Works for

Moisturizing
Panthenol, Butylene glycol dicaprylate/dicaprate + 11 more
Works well
What the product description says
“Contains moisturizing effect that hydrates the skin.”
Source: Yesstyle

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": trehalose, butylene glycol.

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. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: panthenol

PanthenolHero· HumectantEffect: HighHelps attract water to the upper layer of the skin and can help improve skin barrier function~1.3–1.6%
Butylene glycol dicaprylate/dicaprateKey active· EmollientEffect: MediumHelps soften the upper layer of the skin~3.4–4.2%
Corallina officinalis extractKey activeEffect: HighRed algae extract that helps attract water to the upper layer of the skin and might contain antioxidants~0.65–0.95%
TrehaloseKey active· HumectantEffect: HighA sugar that attracts water to the upper layer of the skin~0.45–0.65%
PolymethylsilsesquioxaneKey activeEffect: HighA silicone that improves product texture and helps dissolve other ingredients. Can form a non-greasy film on the skin to prevent moisture loss~0.45–0.65%
Cyclohexasiloxane· EmollientEffect: LowA silicone that serves as an emollient. Helps create a nice non-greasy feels~6.2–7.5%
Dicaprylyl ether· EmollientEffect: LowHelps soften the upper layer of the skin while creating a non-greasy feel on the skin. Helps to dissolve other ingredients~2.8–3.4%
Moringa oleifera seed oil· EmollientEffect: LowA plant oil that helps soften the upper layer of the skin. Is unlikely to be helpful in restoring skin barrier function due to the low content of linoleic acid~0.3–0.55%
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~0.15–0.25%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.1–0.2%
Stearic acidEffect: Low, below effective doseHelps oil and water mix together and works as an emollient~0.6–0.9%
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~0.2–0.35%
Caprylic/capric triglycerideUnder-dosedA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~0.45–0.7%

Can it cause trouble?

Irritancy
3 strong irritants: Hamamelis virginiana extract, Ocimum sanctum leaf extract + 1 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
Hamamelis virginiana extractA plant extract that can help calm down inflammation in skin. Can, however, itself be irritatingHigh~1.6–1.9%est.
Curcuma longa root extractA plant extract that can contain an active compound curcumin, that may have some anti-inflammatory properties when applied to the skin, but solid research is lacking and the typical concentration used in skincare products is too low. Can be an irritantHigh~0.7–1.05%est.
Ocimum sanctum leaf extractA plant extract that is rich in a fragrance compound eugenol that is a frequent allergen and can be irritating. It might also contain anti-oxidants to help neutralize free radicalsHigh~0.7–1%est.
Melia azadirachta leaf extractA plant extract that has anti-bacterial properties. Can be used to preserve the product. Can be irritatingHigh~0.55–0.85%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.05%est.
Coccinia indica fruit extractA plant extract that might have some anti-oxidant effect helping neutralize free radicals in skinMedium~1.1–1.3%est.
Solanum melongena fruit extractEggplant fruit extract. Might have some anti-oxidant effectMedium~0.8–1.2%est.
Fragaria vesca fruit extractA plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lackingMedium~0.6–0.95%est.
Melia azadirachta flower extractA plant extract that might be helpful to neutralize free radicals in skinMedium~0.55–0.8%est.
Polyglyceryl-3 oleateHelps oil and water mix togetherMedium~0.45–0.7%est.
1,2-hexanediolA preservativeMedium~0.4–0.65%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~0.45–0.7%est.
EthylhexylglycerinA preservativeMedium~0.25–0.5%est.
Moringa oleifera seed oilA plant oil that helps soften the upper layer of the skin. Is unlikely to be helpful in restoring skin barrier function due to the low content of linoleic acidMedium~0.3–0.55%est.
Polyglyceryl-4 diisostearate/polyhydroxystearate/sebacateHelps water and oil mix togetherMedium~0.25–0.5%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.1–0.2%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 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
Corallina officinalis extractRed algae extract that helps attract water to the upper layer of the skin and might contain antioxidants3/5~0.65–0.95%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
Cyclohexasiloxane~6.2–7.5%
Formula
Irritation risk
Low
Works for
Moisturizing

A silicone that serves as an emollient. Helps create a nice non-greasy feels

More about Cyclohexasiloxane
Zinc oxide~5.2–6.4%
Formula
Irritation risk
Low
Works for
Sun protection

A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant

More about Zinc oxide
Butylene glycol dicaprylate/dicaprate~3.4–4.2%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Butylene glycol dicaprylate/dicaprate
Dicaprylyl ether~2.8–3.4%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin while creating a non-greasy feel on the skin. Helps to dissolve other ingredients

More about Dicaprylyl ether
Titanium dioxide~2.8–3.4%
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
Propanediol~1.9–2.3%
Formula
Irritation risk
Low

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

More about Propanediol
Hamamelis virginiana extract~1.6–1.9%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatory

A plant extract that can help calm down inflammation in skin. Can, however, itself be irritating

More about Hamamelis virginiana extract
Panthenol~1.3–1.6%
Hero · Moisturizing
Irritation risk
Low
Works for
Reduces rednessMoisturizingReduces irritation

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

More about Panthenol
Coccinia indica fruit extract~1.1–1.3%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that might have some anti-oxidant effect helping neutralize free radicals in skin

More about Coccinia indica fruit extract
Solanum melongena fruit extract~0.8–1.2%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

Eggplant fruit extract. Might have some anti-oxidant effect

More about Solanum melongena fruit extract
Curcuma longa root extract~0.7–1.05%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatory

A plant extract that can contain an active compound curcumin, that may have some anti-inflammatory properties when applied to the skin, but solid research is lacking and the typical concentration used in skincare products is too low. Can be an irritant

More about Curcuma longa root extract
Ocimum sanctum leaf extract~0.7–1%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that is rich in a fragrance compound eugenol that is a frequent allergen and can be irritating. It might also contain anti-oxidants to help neutralize free radicals

More about Ocimum sanctum leaf extract
Corallina officinalis extract~0.65–0.95%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-oxidation

Red algae extract that helps attract water to the upper layer of the skin and might contain antioxidants

More about Corallina officinalis extract
Fragaria vesca fruit extract~0.6–0.95%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lacking

More about Fragaria vesca fruit extract
Nymphaea alba flower extract~0.6–0.9%
Formula
Melia azadirachta leaf extract~0.55–0.85%
Irritant · high
Irritation risk
High
Works for
AntibacterialAnti-blemish

A plant extract that has anti-bacterial properties. Can be used to preserve the product. Can be irritating

More about Melia azadirachta leaf extract
Melia azadirachta flower extract~0.55–0.8%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that might be helpful to neutralize free radicals in skin

More about Melia azadirachta flower extract
Methyl methacrylate crosspolymer~0.55–0.8%
Formula
Irritation risk
Low
Works for
Mattifying

Helps thicken the product consistency

More about Methyl methacrylate crosspolymer
Stearic acid~0.6–0.9%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Helps oil and water mix together and works as an emollient

More about Stearic acid
Aluminum hydroxide~0.5–0.75%
Formula
Irritation risk
Low

Is used to add opaque (non-transparent) appearance to formulations. Can be used to coat other ingredients for even dispersion. This is a different ingredient compared to the ones used in antipersperants (aluminium chloride and aluminium chlorohydrate)

More about Aluminum hydroxide
Trehalose~0.45–0.65%
Key active
Irritation risk
Low
Works for
Moisturizing

A sugar that attracts water to the upper layer of the skin

More about Trehalose
Polyglyceryl-3 oleate~0.45–0.7%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polyglyceryl-3 oleate
1,2-hexanediol~0.4–0.65%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Polymethylsilsesquioxane~0.45–0.65%
Key active
Irritation risk
Low
Works for
Moisturizing

A silicone that improves product texture and helps dissolve other ingredients. Can form a non-greasy film on the skin to prevent moisture loss

More about Polymethylsilsesquioxane
Caprylic/capric triglyceride~0.45–0.7%
Under-dosedIrritant · 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
Polyglyceryl-3 oleate~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polyglyceryl-3 oleate
Ethylhexylglycerin~0.25–0.5%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Diisostearoyl polyglyceryl-3 dimer dilinoleate~0.3–0.55%
Formula
Amber powder~0.25–0.5%
Formula
Irritation risk
Low

Does not have proven skin benefits

More about Amber powder
Moringa oleifera seed oil~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

A plant oil that helps soften the upper layer of the skin. Is unlikely to be helpful in restoring skin barrier function due to the low content of linoleic acid

More about Moringa oleifera seed oil
Polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate~0.25–0.5%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil mix together

More about Polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate
Sodium chloride~0.25–0.45%
Formula
Irritation risk
Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride
Calamine~0.2–0.4%
Formula
Irritation risk
Low
More about Calamine
Dipropylene glycol~0.15–0.3%
Formula
Irritation risk
Low

Helps to dissolve other ingredients in a formulation. Slows down the rate of product drying

More about Dipropylene glycol
Tocopherol~0.2–0.35%
Formula
Irritation risk
Low
Works for
Anti-oxidationMoisturizingAnti-inflammatoryAnti-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
Butylene glycol~0.15–0.25%
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
Sodium palmitoyl proline~0.1–0.25%
Formula
Fructan~0.1–0.2%
Formula
Irritation risk
Low
More about Fructan
Glyceryl caprylate/caprate~0.15–0.25%
Formula
Irritation risk
Low
Works for
Cleansing
More about Glyceryl caprylate/caprate
Caprylyl glycol~0.1–0.2%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Parfum~0.05%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Ingredient list view

Water, Cyclohexasiloxane, Zinc oxide, Butylene glycol dicaprylate/dicaprate, Dicaprylyl ether, Titanium dioxide, Propanediol, Hamamelis virginiana extract, Panthenol, Coccinia indica fruit extract, Solanum melongena fruit extract, Curcuma longa root extract, Ocimum sanctum leaf extract, Corallina officinalis extract, Fragaria vesca fruit extract, Nymphaea alba flower extract, Melia azadirachta leaf extract, Melia azadirachta flower extract, Methyl methacrylate crosspolymer, Stearic acid, Aluminum hydroxide, Trehalose, Polyglyceryl-3 oleate, 1,2-hexanediol, Polymethylsilsesquioxane, Caprylic/capric triglyceride, Polyglyceryl-3 oleate, Ethylhexylglycerin, Diisostearoyl polyglyceryl-3 dimer dilinoleate, Amber powder, Moringa oleifera seed oil, Polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate, Sodium chloride, Calamine, Dipropylene glycol, Tocopherol, Butylene glycol, Sodium palmitoyl proline, Fructan, Glyceryl caprylate/caprate, Caprylyl glycol, 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
REYENA16Daily UV Defense Sun MilkYOUR PRODUCTNeutrogenaSensitive Skin Serum with Moisturizing Vitamin-B5Purito SEOULCica Clearing BB CreamHeimishMoringa Ceramide BB Cream
Match—55%53%52%
Price—$14.99$7.49$19.00
Shared key ingredients—3 of 114 of 116 of 11
Key difference—DimethiconeNiacinamideNiacinamide
Irritancy High Low Medium High
Drying alcohol————
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 20 studies and safety reviews.

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REYENA16 Daily UV Defense Sun Milk
REYENA16Daily UV Defense Sun Milk

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

As an Amazon Associate, WIMJ earns from qualifying purchases.