OneSkin OS-01 FACE SPF 30+

OneSkin OS-01 FACE SPF 30+

SPF 30Efficacy90/100IrritancyLow·1 UV filter

Works for

Sun protection
SPF 30 · 1 UV filter
Broad spectrum
SPF 30Broad spectrumMineral filters

This product offers a good level of protection against both UVB and UVA rays.

It is a mineral sunscreen. In other words, it contains non-organic UV filters. It will probably not sting your eyes but might leave a white cast.

This product can be considered "reef safe" because it does not contain the UV filters (oxybenzone and octinoxate) that can be harmful to coral reefs when present in the water in high concentrations.

UV spectrum
UVB290–320 nmUVA II320–340 nmUVA I340–400 nm
Zinc Oxide
FilterCoverageWhat it doesEst. amount
Zinc Oxide Mineral UVBUVA Photo-stable 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 colorant17.5%
Reef-safe
No oxybenzone or octinoxate — the two filters banned in Hawaii, Florida Keys and Aruba.
Anti-blemish
Camellia sinensis leaf extract, Allantoin
Not delivered

Effective ingredients missing or their concentration is too low.

Camellia sinensis leaf extractEffect: LowCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.5–0.7%
AllantoinEffect: Low, below effective doseHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.6–0.95%
Anti-aging
Side benefit · Camellia sinensis leaf extract, Tetrahexyldecyl ascorbate
Works well

This product can help prevent early signs of skin aging because it offers a good level of broad spectrum sun protection. Sun damage is the main cause of premature skin aging, and protecting your skin from the sun is the best anti-aging strategy.

Camellia sinensis leaf extractEffect: LowCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.5–0.7%
Tetrahexyldecyl ascorbateUnder-dosedBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.~0.5–0.75%
Evens skin tone
Side benefit · Camellia sinensis leaf extract, Tetrahexyldecyl ascorbate
Works well

This product offers broad spectrum sun protection. It means that it can prevent hyperpigmentation and help keep the skin tone even (sun damage is the main factor causing age spots, darkening of post-acne marks and other discolorations).

Camellia sinensis leaf extractEffect: LowCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.5–0.7%
Tetrahexyldecyl ascorbateUnder-dosedBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.~0.5–0.75%
Moisturizing
Side benefit · Caprylic/capric triglyceride, Glycerin + 10 more
Works

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, cetearyl alcohol.

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~4.9–6%
Methyl dihydroabietateKey activeEffect: MediumHelps soften the upper layer of the skin~3.2–3.9%
Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~2.4–2.9%
Cetyl palmitateKey active· EmollientEffect: MediumAn emollient that helps soften the skin and is used to improve product texture and stability~2–2.4%
Hydrolyzed jojoba estersKey activeEffect: HighHelps soften the upper layer of the skin~0.6–0.95%
Helianthus annuus sprout extractKey activeEffect: HighHelps soften the upper layer of the skin and can help support the skin barrier~0.35–0.65%
Camellia sinensis leaf extractEffect: LowCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.5–0.7%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.4–0.65%
Propylene glycol· HumectantEffect: LowHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating~0.3–0.5%
LecithinEffect: Low, below effective doseUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~0.55–0.85%
AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.6–0.95%
Anti-oxidation
Side benefit · Camellia sinensis leaf extract, Bisabolol + 4 more
May help

This product contains antioxidants (camellia sinensis leaf 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.

Camellia sinensis leaf extractKey activeEffect: MediumCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.5–0.7%
BisabololEffect: LowAn active component of chamomile plant that historically has been used to calm down irritated skin. A recent study shows that bisabolol indeed can have some anti-inflammatory effect on skin, even though conclusive data is lacking. Bisabolol has a sweet floral scent and can be added to products for its aromatic properties~0.65–1%
Euterpe oleracea fruit extractEffect: LowA plant extract that can have some anti-oxidant effect in skin~0.45–0.65%
Caesalpinia spinosa fruit pod extractEffect: LowA plant extract with antioxidant effect. Is often added to skincare to boost SPF~0.4–0.6%
Tocopheryl acetateEffect: Low, below effective doseA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.~0.5–0.75%
Tetrahexyldecyl ascorbateUnder-dosedBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.~0.5–0.75%

Can it cause trouble?

Irritancy
16 flagged ingredients
Low risk
We flag 16 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Coco-glucosideUsed as a cleansing agent (surfactant) in cleansers. Helps water and oil mix together in lotions. Can be irritatingHigh~1.9–2.3%est.
Propylene glycolHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritatingHigh~0.3–0.5%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.
Caprylyl/capryl glucosideHelps oil and water mix together. Can be used as a cleansing agentMedium~1.8–2.1%est.
Sorbitan palmitateHelps water and oil mix together and stabilize the product formulationMedium~1.4–1.7%est.
Acacia senegal gumHelps mask the small of other ingredients and improve the product textureMedium~0.65–0.95%est.
Polyhydroxystearic acidUsed to create a thicker product consistency and stabilize the formulationMedium~0.65–0.95%est.
Polyglyceryl-3 polyricinoleateHelps oil and water mix togetherMedium~0.6–0.9%est.
Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~0.5–0.75%est.
Tetrahexyldecyl ascorbateBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.Medium~0.5–0.75%est.
Euterpe oleracea fruit extractA plant extract that can have some anti-oxidant effect in skinMedium~0.45–0.65%est.
Caesalpinia spinosa fruit pod extractA plant extract with antioxidant effect. Is often added to skincare to boost SPFMedium~0.4–0.6%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.4–0.65%est.
EthylhexylglycerinA preservativeMedium~0.35–0.6%est.
Hexylene glycolHelps create a more spreadable product textureMedium~0.3–0.6%est.
Potassium sorbateA preservativeMedium~0.15–0.3%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
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~2.4–2.9%est.

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Ingredients

Filter by role to see what each ingredient is doing.

Zinc oxide17.5%
UV filterKey active
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
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
Glycerin~4.9–6%
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
Methyl dihydroabietate~3.2–3.9%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Methyl dihydroabietate
Cetearyl alcohol~2.4–2.9%
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
Cetyl palmitate~2–2.4%
Key active
Irritation risk
Low
Works for
Moisturizing

An emollient that helps soften the skin and is used to improve product texture and stability

More about Cetyl palmitate
Coco-glucoside~1.9–2.3%
Irritant · high
Irritation risk
High
Works for
Cleansing

Used as a cleansing agent (surfactant) in cleansers. Helps water and oil mix together in lotions. Can be irritating

More about Coco-glucoside
Caprylyl/capryl glucoside~1.8–2.1%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together. Can be used as a cleansing agent

More about Caprylyl/capryl glucoside
Sorbitan palmitate~1.4–1.7%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil mix together and stabilize the product formulation

More about Sorbitan palmitate
Sorbitan olivate~1.2–1.4%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Sorbitan olivate
Butyrospermum parkii nut extract~1–1.2%
Formula
Ethyl ferulate~0.75–1.1%
Formula
Irritation risk
Low
More about Ethyl ferulate
Bisabolol~0.65–1%
Formula
Irritation risk
Low
Works for
Anti-inflammatoryReduces irritationAnti-oxidation

An active component of chamomile plant that historically has been used to calm down irritated skin. A recent study shows that bisabolol indeed can have some anti-inflammatory effect on skin, even though conclusive data is lacking. Bisabolol has a sweet floral scent and can be added to products for its aromatic properties

More about Bisabolol
Allantoin~0.6–0.95%
Under-dosed
Irritation risk
Low
Works for
Anti-inflammatoryMoisturizingReduces irritationReduces rednessAnti-blemishExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin
Hydrolyzed jojoba esters~0.6–0.95%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Hydrolyzed jojoba esters
Acacia senegal gum~0.65–0.95%
Irritant · medium
Irritation risk
Medium

Helps mask the small of other ingredients and improve the product texture

More about Acacia senegal gum
Polyhydroxystearic acid~0.65–0.95%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Used to create a thicker product consistency and stabilize the formulation

More about Polyhydroxystearic acid
Polyglyceryl-3 polyricinoleate~0.6–0.9%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polyglyceryl-3 polyricinoleate
Isostearic acid~0.65–0.95%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a nice product texture

More about Isostearic acid
Lecithin~0.55–0.85%
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
Tocopheryl acetate~0.5–0.75%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate
Tetrahexyldecyl ascorbate~0.5–0.75%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Evens skin toneAnti-agingAnti-oxidation

Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.

More about Tetrahexyldecyl ascorbate
Decapeptide-52~0.45–0.65%
Formula
Irritation risk
Low
More about Decapeptide-52
Oryza sativa starch~0.45–0.7%
Formula
Camellia sinensis leaf extract~0.5–0.7%
Key active
Irritation risk
Low
Works for
Anti-oxidationAntibacterialAnti-agingAnti-blemishEvens skin toneMoisturizing

Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation

More about Camellia sinensis leaf extract
Euterpe oleracea fruit extract~0.45–0.65%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that can have some anti-oxidant effect in skin

More about Euterpe oleracea fruit extract
Caesalpinia spinosa fruit pod extract~0.4–0.6%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract with antioxidant effect. Is often added to skincare to boost SPF

More about Caesalpinia spinosa fruit pod extract
Helianthus annuus sprout extract~0.35–0.65%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin and can help support the skin barrier

More about Helianthus annuus sprout extract
Caprylyl glycol~0.4–0.65%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Ethylhexylglycerin~0.35–0.6%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Hexylene glycol~0.3–0.6%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps create a more spreadable product texture

More about Hexylene glycol
Xanthan gum~0.35–0.6%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Sodium phytate~0.3–0.55%
Formula
Irritation risk
Low

Used to stabilize product formulations

More about Sodium phytate
Propylene glycol~0.3–0.5%
Irritant · high
Irritation risk
High
Works for
Moisturizing

Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating

More about Propylene glycol
Phenoxyethanol~0.25–0.5%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Sodium benzoate~0.2–0.4%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Potassium sorbate~0.15–0.3%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Triethoxycaprylylsilane~0.15–0.3%
Formula
Irritation risk
Low

A type of silicone that helps oil and water mix well together. Helps to disperse other ingredients, e.g. pigments, evenly in a formulation

More about Triethoxycaprylylsilane
Alumina~0.3–0.5%
Formula
Irritation risk
Low

The same compound that is used safely in dental implants and bone cements. In cosmetics, it is used to improve the consistency of products

More about Alumina
Magnesium oxide~0.15–0.3%
Formula
Iron oxides~0.1–0.2%
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
Ingredient list view

Zinc oxide, Water, Caprylic/capric triglyceride, Glycerin, Methyl dihydroabietate, Cetearyl alcohol, Cetyl palmitate, Coco-glucoside, Caprylyl/capryl glucoside, Sorbitan palmitate, Sorbitan olivate, Butyrospermum parkii nut extract, Ethyl ferulate, Bisabolol, Allantoin, Hydrolyzed jojoba esters, Acacia senegal gum, Polyhydroxystearic acid, Polyglyceryl-3 polyricinoleate, Isostearic acid, Lecithin, Tocopheryl acetate, Tetrahexyldecyl ascorbate, Decapeptide-52, Oryza sativa starch, Camellia sinensis leaf extract, Euterpe oleracea fruit extract, Caesalpinia spinosa fruit pod extract, Helianthus annuus sprout extract, Caprylyl glycol, Ethylhexylglycerin, Hexylene glycol, Xanthan gum, Sodium phytate, Propylene glycol, Phenoxyethanol, Sodium benzoate, Potassium sorbate, Triethoxycaprylylsilane, Alumina, Magnesium oxide, Iron oxides

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Amazon USPrice as of 11/9 15:00 GMT
$56.00
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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
OneSkinOS-01 FACE SPF 30+YOUR PRODUCTGood MoleculesSheer Mineral Sunscreen SPF 30one-skin-technologiesOS-01 SHIELD Protect + Repair SPF 30+MDSolarSciencesMineral Crme Broad Spectrum SPF 50 UVA-UVB Sunscreen
Match—52%45%42%
Price$56.00$11.99−$44.01$56.00—
Shared key ingredients—5 of 99 of 91 of 9
Key difference—Acetyl Glucosamine—Butyloctyl Salicylate
Irritancy Low Low Low Low
SPFSPF 30SPF 30SPF 30SPF 50
Drying alcohol————
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More alternatives: Solara Suncare Daily Defense Mineral Sunscreen SPF 30Babo Botanicals Face + Body Sunscreen - SPF 30

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Product summary

The ingredient list suggests that "One Skin - OS-01 FACE SPF 30+" can provide reliable sun protection. It can protect from both UVA and UVB rays. This is great news because not all sunscreens with SPF ratings give UVA protection. (UVA rays do not cause sunburn, but still damage our skin and lead to early aging).

This product should also be hydrating enough to use without an additional moisturizer during the day. This product prevents early signs of aging by protecting against sun damage (all broad spectrum sunscreens do that).

Sunscreen filters

This product is a mineral sunscreen. It uses zinc oxide for sun protection. Zinc oxide almost never irritates the skin or stings eyes, but it can leave a white cast.

Irritation risk

There are some common irritants in this product, including ingredients that do not have benefits for the skin. We assess the overall irritancy of it to be medium. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 18 studies and safety reviews.

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As an Amazon Associate, WIMJ earns from qualifying purchases.