St. Tropez Express Gel

St. Tropez Express Gel

Efficacy75/100IrritancyHigh

Works for

Moisturizing
Saccharide isomerate, Glycine + 2 more
Works
What the product description says
“A one-hour hydrating tan gel.”
Source: Beauty Bay

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": glycine, hydrolyzed hyaluronic acid.

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).

Saccharide isomerateKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin~1.4–1.7%
GlycineKey active· HumectantEffect: HighHelps to attract water to the upper layer of the skin and can help restore the skin barrier function~0.5–0.8%
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~0.3–0.6%
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~4.3–5.2%

Can it cause trouble?

Irritancy
10 strong irritants: Parfum, Linalool + 8 more — patch-test recommended
High risk
We flagged 22 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
DihydroxyacetoneA self-tanning agentHigh~5.9–7.2%est.
Benzyl alcoholA preservative. Can be used to mask unpleasant smell. Can be irritatingHigh~0.65–0.95%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.55–0.85%est.
LinaloolA fragrance. Can be irritatingHigh~0.4–0.65%est.
Benzyl salicylateA fragrance. Is a likely irritantHigh~0.4–0.6%est.
Hexyl cinnamalA fragrance with jasmine smell. A likely irritantHigh~0.3–0.6%est.
CitronellolA fragrance. Can be irritatingHigh~0.25–0.45%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.25–0.45%est.
GeraniolA fragrance. Can be irritatingHigh~0.2–0.4%est.
HydroxycitronellalA fragrance. A likely allergen and can be irritatingHigh~0.15–0.3%est.
Alpha-isomethyl iononeA fragrance. Potential allergen and can be irritatingHigh~0.1–0.25%est.
CoumarinA fragrance. Is a likely skin allergen and can be irritatingHigh~0.1–0.15%est.
Peg-40 hydrogenated castor oilHelps oil and water mix togetherMedium~2.4–2.9%est.
EthoxydiglycolHelps to improve the product consistencyMedium~1.9–2.3%est.
Hexylene glycolHelps create a more spreadable product textureMedium~1.2–1.4%est.
Sodium metabisulfiteA preservativeMedium~0.1–0.2%est.
T-butyl alcoholUsed to dissolve other ingredients and to improve smell of products. It could be irritatingMedium~0.25–0.5%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.2–0.4%est.
Sodium citrateHelps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve productsMedium~0.2–0.35%est.
Leuconostoc/radish root ferment filtrateA preservative that comes from radishes fermented by a bacteria. New research suggests that the preservation properties in the ingredient come from an ammonium salt that is not present naturally in radish root but used in its cultivation. Is problematic because the exact amount of the preservative agents is difficult to determineMedium~0.15–0.3%est.
Ci 14700A colorantMedium~0.1–0.15%est.
Ci 42090A colorant (dye)Medium~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~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Dihydroxyacetone~5.9–7.2%
Irritant · high
Irritation risk
High
Works for
Tanning

A self-tanning agent

More about Dihydroxyacetone
Butylene glycol~4.3–5.2%
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
Caramel~3.2–3.9%
Formula
Irritation risk
Low
More about Caramel
Peg-40 hydrogenated castor oil~2.4–2.9%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-40 hydrogenated castor oil
Ethoxydiglycol~1.9–2.3%
Irritant · medium
Irritation risk
Medium

Helps to improve the product consistency

More about Ethoxydiglycol
Polyacrylate crosspolymer-6~1.7–2.1%
Formula
Saccharide isomerate~1.4–1.7%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Saccharide isomerate
Hexylene glycol~1.2–1.4%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps create a more spreadable product texture

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

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Benzyl alcohol~0.65–0.95%
Irritant · high
Irritation risk
High

A preservative. Can be used to mask unpleasant smell. Can be irritating

More about Benzyl alcohol
Parfum~0.55–0.85%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Glycine~0.5–0.8%
Key active
Irritation risk
Low
Works for
Moisturizing

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

More about Glycine
Melanin~0.5–0.75%
Formula
Irritation risk
Low
More about Melanin
Sodium metabisulfite~0.1–0.2%
Irritant · medium
Irritation risk
Medium

A preservative

More about Sodium metabisulfite
Linalool~0.4–0.65%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Benzyl salicylate~0.4–0.6%
Irritant · high
Irritation risk
High

A fragrance. Is a likely irritant

More about Benzyl salicylate
Hexyl cinnamal~0.3–0.6%
Irritant · high
Irritation risk
High

A fragrance with jasmine smell. A likely irritant

More about Hexyl cinnamal
Hydrolyzed hyaluronic acid~0.3–0.6%
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
T-butyl alcohol~0.25–0.5%
Irritant · medium
Irritation risk
Medium

Used to dissolve other ingredients and to improve smell of products. It could be irritating

More about T-butyl alcohol
Citronellol~0.25–0.45%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Citronellol
Limonene~0.25–0.45%
Irritant · high
Irritation risk
High

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

More about Limonene
Geraniol~0.2–0.4%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Geraniol
Citric acid~0.2–0.4%
Irritant · medium
Irritation risk
Medium

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

More about Citric acid
Sodium citrate~0.2–0.35%
Irritant · medium
Irritation risk
Medium

Helps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve products

More about Sodium citrate
Hydroxycitronellal~0.15–0.3%
Irritant · high
Irritation risk
High

A fragrance. A likely allergen and can be irritating

More about Hydroxycitronellal
Leuconostoc/radish root ferment filtrate~0.15–0.3%
Irritant · medium
Irritation risk
Medium

A preservative that comes from radishes fermented by a bacteria. New research suggests that the preservation properties in the ingredient come from an ammonium salt that is not present naturally in radish root but used in its cultivation. Is problematic because the exact amount of the preservative agents is difficult to determine

More about Leuconostoc/radish root ferment filtrate
Alpha-isomethyl ionone~0.1–0.25%
Irritant · high
Irritation risk
High

A fragrance. Potential allergen and can be irritating

More about Alpha-isomethyl ionone
Anise alcohol~0.1–0.2%
Formula
Irritation risk
Low
More about Anise alcohol
Coumarin~0.1–0.15%
Irritant · high
Irritation risk
High

A fragrance. Is a likely skin allergen and can be irritating

More about Coumarin
Ci 14700~0.1–0.15%
Irritant · medium
Irritation risk
Medium

A colorant

More about Ci 14700
Ci 42090~0.05–0.1%
Irritant · medium
Irritation risk
Medium

A colorant (dye)

More about Ci 42090
Ingredient list view

Water, Dihydroxyacetone, Butylene glycol, Caramel, Peg-40 hydrogenated castor oil, Ethoxydiglycol, Polyacrylate crosspolymer-6, Saccharide isomerate, Hexylene glycol, Phenoxyethanol, Benzyl alcohol, Parfum, Glycine, Melanin, Sodium metabisulfite, Linalool, Benzyl salicylate, Hexyl cinnamal, Hydrolyzed hyaluronic acid, T-butyl alcohol, Citronellol, Limonene, Geraniol, Citric acid, Sodium citrate, Hydroxycitronellal, Leuconostoc/radish root ferment filtrate, Alpha-isomethyl ionone, Anise alcohol, Coumarin, Ci 14700, Ci 42090

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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. TropezExpress GelYOUR PRODUCTSkinny TanCoconut Water Tanning MistJosie MaranVanilla Vibezzz - Hydrating + Cleansing Argan Refillable Body WashKlairsDaily Comfort Hand Cream
Match—32%32%31%
Price—$16.72$21.48$9.08
Shared key ingredients—3 of 42 of 42 of 4
Key difference—3-O-Ethyl Ascorbic AcidAlaninePanthenol
Irritancy High High High Medium
Drying alcohol— Contains drying alcohol ——
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St. Tropez Express Gel
St. TropezExpress Gel

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