St. Tropez Purity Vitamins Serum

St. Tropez Purity Vitamins Serum

Efficacy75/100IrritancyHigh

Works for

Moisturizing
Glycerin, Betaine + 5 more
Works
What the product description says
“The non-pore clogging formula is packed with hyaluronic acid, peach flower extract, and vitamins C and D to hydrate and moisturise, leaving a powder soft finish and a natural tan.”
Source: Beauty Bay

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, fructooligosaccharides.

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: persea gratissima fruit extract, terminalia ferdinandiana seed oil.

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~2.7–4.1%
BetaineKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and improves the product texture~1.2–1.8%
FructooligosaccharidesKey active· HumectantEffect: HighHelp attract water to the upper layer of the skin~0.4–1%
Terminalia ferdinandiana seed oilKey active· Humectant, EmollientEffect: HighHelps soften the upper layer of the skin~0.3–0.75%
Hydrolyzed hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin~0.1–0.45%
Persea gratissima fruit extractKey active· EmollientEffect: High~0.1–0.45%
Lactic acidUnder-dosedAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.15–0.6%

Can it cause trouble?

Irritancy
7 strong irritants: Citrus nobilis fruit extract, Parfum + 5 more — patch-test recommended
High risk
We flagged 15 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
DihydroxyacetoneA self-tanning agentHigh~5.1–7.6%est.
Citrus nobilis fruit extract—High~1–1.5%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.35–0.85%est.
LinaloolA fragrance. Can be irritatingHigh~0.15–0.65%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.1–0.5%est.
CitronellolA fragrance. Can be irritatingHigh~0.1–0.45%est.
Hexyl cinnamalA fragrance with jasmine smell. A likely irritantHigh~0.1–0.4%est.
Hibiscus sabdariffa flower extractA plant extract that can be irritating. It might contain a compound anthocyanin that could be helpful in neutralizing free radicalsHigh~0.05–0.15%est.
Peg-40 hydrogenated castor oilHelps oil and water mix togetherMedium~2–3%est.
Sodium metabisulfiteA preservativeMedium~0.1–0.2%est.
Beta vulgaris root extractA plant extract that might have some antioxidant properties, but mostly used in cosmetics for its colorMedium~0.5–1.2%est.
EthylhexylglycerinA preservativeMedium~0.35–0.85%est.
Lactic acidAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)Medium~0.15–0.6%est.
Potassium sorbateA preservativeMedium~0.05–0.25%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.05–0.1%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Dihydroxyacetone~5.1–7.6%
Irritant · high
Irritation risk
High
Works for
Tanning

A self-tanning agent

More about Dihydroxyacetone
Propanediol~3.7–5.6%
Formula
Irritation risk
Low

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

More about Propanediol
Glycerin~2.7–4.1%
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
Peg-40 hydrogenated castor oil~2–3%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-40 hydrogenated castor oil
Hydroxyethylcellulose~1.7–2.5%
Formula
Irritation risk
Low

Used to thicken product formulations and create gel-like textures

More about Hydroxyethylcellulose
Phenoxyethanol~0.5–1%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Betaine~1.2–1.8%
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
Citrus nobilis fruit extract~1–1.5%
Irritant · high
Sodium metabisulfite~0.1–0.2%
Irritant · medium
Irritation risk
Medium

A preservative

More about Sodium metabisulfite
Beta vulgaris root extract~0.5–1.2%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that might have some antioxidant properties, but mostly used in cosmetics for its color

More about Beta vulgaris root extract
Fructooligosaccharides~0.4–1%
Key active
Irritation risk
Low
Works for
Moisturizing

Help attract water to the upper layer of the skin

More about Fructooligosaccharides
Parfum~0.35–0.85%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Ethylhexylglycerin~0.35–0.85%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Propylene glycol dicaprylate/dicaprate~0.35–0.85%
Formula
Prunus persica flower extract~0.3–0.75%
Formula
Potassium lactate~0.3–0.75%
Formula
Terminalia ferdinandiana seed oil~0.3–0.75%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Terminalia ferdinandiana seed oil
Linalool~0.15–0.65%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Lactic acid~0.15–0.6%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Evens skin toneMoisturizingExfoliationAnti-aging

An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)

More about Lactic acid
Limonene~0.1–0.5%
Irritant · high
Irritation risk
High

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

More about Limonene
Citronellol~0.1–0.45%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Citronellol
Hexyl cinnamal~0.1–0.4%
Irritant · high
Irritation risk
High

A fragrance with jasmine smell. A likely irritant

More about Hexyl cinnamal
Hydrolyzed hyaluronic acid~0.1–0.45%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin

More about Hydrolyzed hyaluronic acid
Persea gratissima fruit extract~0.1–0.45%
Key active
Irritation risk
Low
Works for
Moisturizing
More about Persea gratissima fruit extract
Sodium hydroxide~0.1–0.35%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Sodium benzoate~0.05–0.25%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Potassium sorbate~0.05–0.25%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Citric acid~0.05–0.1%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Hibiscus sabdariffa flower extract~0.05–0.15%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that can be irritating. It might contain a compound anthocyanin that could be helpful in neutralizing free radicals

More about Hibiscus sabdariffa flower extract
Ingredient list view

Water, Dihydroxyacetone, Propanediol, Glycerin, Peg-40 hydrogenated castor oil, Hydroxyethylcellulose, Phenoxyethanol, Betaine, Citrus nobilis fruit extract, Sodium metabisulfite, Beta vulgaris root extract, Fructooligosaccharides, Parfum, Ethylhexylglycerin, Propylene glycol dicaprylate/dicaprate, Prunus persica flower extract, Potassium lactate, Terminalia ferdinandiana seed oil, Linalool, Lactic acid, Limonene, Citronellol, Hexyl cinnamal, Hydrolyzed hyaluronic acid, Persea gratissima fruit extract, Sodium hydroxide, Sodium benzoate, Potassium sorbate, Citric acid, Hibiscus sabdariffa flower extract

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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
St. TropezPurity Vitamins SerumYOUR PRODUCTSKIN&LABVitamin C Brightening SerumACWELLPhyto Active Balancing AmpouleLumeneNordic Ageless [AJATON] Radiant Youth Pressed Serum
Match—42%42%41%
Price—$12.69$21.00$59.39
Shared key ingredients—4 of 74 of 73 of 7
Key difference—RetinolNiacinamideN-Prolyl Palmitoyl Tripeptide-56 Acetate
Irritancy High Medium Medium Medium
Drying alcohol————
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St. Tropez Purity Vitamins Serum
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Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.