Dr. Barbara Sturm Sun Drop SPF30 Sérum Solaire

Dr. Barbara Sturm Sun Drop SPF30 Sérum Solaire

SPF 30Efficacy90/100IrritancyLow·4 UV filters
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Works for

1 of 1 advertised claim delivered

Sun protection
SPF 30 · 4 UV filters
Broad spectrum
SPF 30Broad spectrumChemical filtersNo white cast

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

This sunscreen uses organic (so-called "chemical") sunscreen filters. Organic, or "chemical" filters usually provide reliable sun protection and rarely leave a white cast. Sunscreens with organic filters can sting eyes.

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
Uvinul T
Ensulizole
Tinosorb S
Uvinul A Plus
FilterCoverageWhat it doesEst. amount
Uvinul TEthylhexyl TriazoneUVB Photo-stable Uvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yet~2.6–3.2%
EnsulizolePhenylbenzimidazole Sulfonic AcidUVB Photo-stable Ensulizole. A UV filter that is effective against UVB rays. Does not protect against UVA light. It is photostable and can be used to help stabilize other sunscreen ingredients. It is water-soluble meaning that it can help create lighter sunscreen formulations~2–2.5%
Tinosorb SBis-ethylhexyloxyphenol Methoxyphenyl TriazineUVBUVA Photo-stable Tinosorb S. One of the most effective broad spectrum sunscreen ingredients. Protects from both UVA and UVB rays. It is photostable. Unfortunately, not approved by FDA (US) yet.~3.1–3.8%
Uvinul A PlusDiethylamino Hydroxybenzoyl Hexyl BenzoateUVA1 Photo-stable Uvinul A Plus. A new generation broad spectrum sunscreen that offers an effective protection especially in the UVA range. It is stable in formulations. Unfortunately, is not approved by the FDA (US) yet~3.5–4.3%
~ marks concentrations estimated from label position and typical use levels
Reef-safe
No oxybenzone or octinoxate — the two filters banned in Hawaii, Florida Keys and Aruba.
Anti-oxidation
Not advertised by the brand · 3 ingredients credited for this claim
Strong support

This product contains antioxidants (carnosine) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

CarnosineKey activeEffect: HighA type of peptide. It attracts water to the upper layer of the skin. It can help neutralize free radicals in skin combatting the sun damage~0.3–0.6%
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~0.1–0.2%
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.~0.5–0.7%
Anti-aging
Not advertised by the brand · 2 ingredients credited for this claim
Strong support

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.

These ingredients in the product might also be helpful for reducing and preventing fine lines, wrinkles, and skin elasticity, even though there is no conclusive evidence for their effectiveness: carnosine.

CarnosineKey activeEffect: MediumA type of peptide. It attracts water to the upper layer of the skin. It can help neutralize free radicals in skin combatting the sun damage~0.3–0.6%
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~0.1–0.2%
Evens skin tone
Not advertised by the brand · 1 ingredient credited for this claim
Strong support

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).

Lactobacillus/portulaca oleracea ferment extractEffect: LowObtained from fermenting a plant extract with bacteria Lactobacillus. The resulting compound might be able to calm down inflammation and have some anti-oxidant properties, but solid evidence is missing~0.9–1.15%
Moisturizing
Not advertised by the brand · 13 ingredients credited for this claim
Strong support

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: arginine, biosaccharide gum-1.

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, helianthus annuus seed oil.

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

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~1.8–2.2%
CarnosineKey active· HumectantEffect: HighA type of peptide. It attracts water to the upper layer of the skin. It can help neutralize free radicals in skin combatting the sun damage~0.3–0.6%
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~0.15–0.3%
PanthenolHero· HumectantEffect: HighHelps attract water to the upper layer of the skin and can help improve skin barrier function~0.3–0.55%
PantolactoneKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin~0.1–0.15%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.35–0.6%
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~1.2–1.5%
Biosaccharide gum-1Key active· HumectantEffect: HighHelps attract water to the upper layer of the skin and is claimed to provide a longer-lasting hydration because of its ability to create a water-binding film on the surface of the skin~0.25–0.5%
C12-15 alkyl benzoateKey active· EmollientEffect: MediumEnhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth~4.3–5.2%
Dicaprylyl carbonate· EmollientEffect: LowHelps products spread more easily and works as an emollient to soften skin~0.55–0.85%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.2–0.35%
Dibutyl adipate· EmollientEffect: LowHelps soften the upper layer of the skin and create a nice product consistency~6.4–7.9%
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~0.1–0.2%

Can it cause trouble?

Irritancy
10 flagged ingredients
Low risk
We flag 10 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Diethylamino hydroxybenzoyl hexyl benzoateUvinul A Plus. A new generation broad spectrum sunscreen that offers an effective protection especially in the UVA range. It is stable in formulations. Unfortunately, is not approved by the FDA (US) yetMedium~3.5–4.3%est.
Bis-ethylhexyloxyphenol methoxyphenyl triazineTinosorb S. One of the most effective broad spectrum sunscreen ingredients. Protects from both UVA and UVB rays. It is photostable. Unfortunately, not approved by FDA (US) yet.Medium~3.1–3.8%est.
Ethylhexyl triazoneUvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yetMedium~2.6–3.2%est.
Phenylbenzimidazole sulfonic acidEnsulizole. A UV filter that is effective against UVB rays. Does not protect against UVA light. It is photostable and can be used to help stabilize other sunscreen ingredients. It is water-soluble meaning that it can help create lighter sunscreen formulationsMedium~2–2.5%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~0.5–0.7%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~0.45–0.65%est.
EthylhexylglycerinA preservativeMedium~0.2–0.4%est.
Sodium stearoyl glutamateHelps oil and water mix togetherMedium~0.25–0.5%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.2–0.35%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.2–0.35%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
Dibutyl adipate~6.4–7.9%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin and create a nice product consistency

More about Dibutyl adipate
C12-15 alkyl benzoate~4.3–5.2%
Key active
Irritation risk
Low
Works for
Moisturizing

Enhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth

More about C12-15 alkyl benzoate
Diethylamino hydroxybenzoyl hexyl benzoate~3.5–4.3%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

Uvinul A Plus. A new generation broad spectrum sunscreen that offers an effective protection especially in the UVA range. It is stable in formulations. Unfortunately, is not approved by the FDA (US) yet

More about Diethylamino hydroxybenzoyl hexyl benzoate
Bis-ethylhexyloxyphenol methoxyphenyl triazine~3.1–3.8%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

Tinosorb S. One of the most effective broad spectrum sunscreen ingredients. Protects from both UVA and UVB rays. It is photostable. Unfortunately, not approved by FDA (US) yet.

More about Bis-ethylhexyloxyphenol methoxyphenyl triazine
Ethylhexyl triazone~2.6–3.2%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

Uvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yet

More about Ethylhexyl triazone
Glycerin~1.8–2.2%
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
Phenylbenzimidazole sulfonic acid~2–2.5%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

Ensulizole. A UV filter that is effective against UVB rays. Does not protect against UVA light. It is photostable and can be used to help stabilize other sunscreen ingredients. It is water-soluble meaning that it can help create lighter sunscreen formulations

More about Phenylbenzimidazole sulfonic acid
Arginine~1.2–1.5%
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
Lactobacillus/portulaca oleracea ferment extract~0.9–1.15%
Formula
Irritation risk
Low
Works for
Anti-inflammatoryReduces rednessAnti-blemishReduces irritationEvens skin tone

Obtained from fermenting a plant extract with bacteria Lactobacillus. The resulting compound might be able to calm down inflammation and have some anti-oxidant properties, but solid evidence is missing

More about Lactobacillus/portulaca oleracea ferment extract
Cellulose~0.8–1.15%
Formula
Irritation risk
Low
Works for
Mattifying

Can be used to help absorb oil as well as add volume and imporve texture of products.

More about Cellulose
Dicaprylyl carbonate~0.55–0.85%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps products spread more easily and works as an emollient to soften skin

More about Dicaprylyl carbonate
Tocopheryl acetate~0.5–0.7%
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
Leuconostoc/radish root ferment filtrate~0.45–0.65%
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
Sodium carboxymethyl beta-glucan~0.75–1.15%
Formula
Irritation risk
Low

Helps thicken the product formulation and create a gel-like texture

More about Sodium carboxymethyl beta-glucan
Sodium hyaluronate~0.35–0.6%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate
Carnosine~0.3–0.6%
Key active
Irritation risk
Low
Works for
Anti-oxidationMoisturizingAnti-aging

A type of peptide. It attracts water to the upper layer of the skin. It can help neutralize free radicals in skin combatting the sun damage

More about Carnosine
Panthenol~0.3–0.55%
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
Biosaccharide gum-1~0.25–0.5%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin and is claimed to provide a longer-lasting hydration because of its ability to create a water-binding film on the surface of the skin

More about Biosaccharide gum-1
Sphingomonas ferment extract~0.25–0.45%
Formula
Ethylhexylglycerin~0.2–0.4%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Microcrystalline cellulose~0.25–0.45%
Formula
Irritation risk
Low
Works for
Exfoliation
More about Microcrystalline cellulose
Sodium stearoyl glutamate~0.25–0.5%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

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

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

More about Citric acid
Sodium gluconate~0.2–0.35%
Formula
Irritation risk
Low

Helps stabilize product formulations

More about Sodium gluconate
Caprylyl glycol~0.2–0.35%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Cellulose gum~0.15–0.3%
Formula
Irritation risk
Low

Used to create thicker product consistency and stabilize emulsions

More about Cellulose gum
Helianthus annuus seed oil~0.15–0.3%
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
Phenoxyethanol~0.15–0.25%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Tocopherol~0.1–0.2%
Under-dosed
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
Pantolactone~0.1–0.15%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Pantolactone
Ingredient list view

Water, Dibutyl adipate, C12-15 alkyl benzoate, Diethylamino hydroxybenzoyl hexyl benzoate, Bis-ethylhexyloxyphenol methoxyphenyl triazine, Ethylhexyl triazone, Glycerin, Phenylbenzimidazole sulfonic acid, Arginine, Lactobacillus/portulaca oleracea ferment extract, Cellulose, Dicaprylyl carbonate, Tocopheryl acetate, Leuconostoc/radish root ferment filtrate, Sodium carboxymethyl beta-glucan, Sodium hyaluronate, Carnosine, Panthenol, Biosaccharide gum-1, Sphingomonas ferment extract, Ethylhexylglycerin, Microcrystalline cellulose, Sodium stearoyl glutamate, Citric acid, Sodium gluconate, Caprylyl glycol, Cellulose gum, Helianthus annuus seed oil, Phenoxyethanol, Tocopherol, Pantolactone

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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
Dr. Barbara SturmSun Drop SPF30 Sérum SolaireYOUR PRODUCTHello SundayThe One That's a Serum SPF 50 Hydrating and Brightening Vitamin C SerumBABORDoctor Babor Protect Cellular: Protecting Balm SPF50Beauty of JoseonRelief Sun Aqua Fresh SPF50 PA ++++
Match—60%57%52%
Price$140.00$21.81−$118.19$37.08−$102.92—
Shared key ingredients—8 of 139 of 137 of 13
Key difference—GluconolactoneCaprylic/Capric TriglycerideFerulic Acid
Irritancy Low Low Low Low
SPFSPF 30SPF 50SPF 50SPF 50
Drying alcohol————
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Product summary

We assess that "Dr. Barbara Sturm - Sun Drop SPF30 Sérum Solaire" can provide reliable sun protection based on the ingredient list. We love that it can protect from both UVA and UVB rays (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).

Its formula is also hydrating, so you might not need an additional moistruizer during the day. Like all broad-spectrum sunscreens, this product has an anti-aging benefit.

Sunscreen filters

This is a so-called "chemical" sunscreen. It means that it uses organic UV filters. They typically offer good sun protection and rarely leave a white cast, but they can be irritating for some people with sensitive skin. These are the sun protection ingredients in this sunscreen: tinosorb s 3.10% - 3.80%, uvinul a plus 3.50% - 4.30%, uvinul t 2.60% - 3.20% and ensulizole 2.00% - 2.50%.

Irritation risk

This product does not contain known common irritants and is suitable for sensitive skin. We assess the overall irritancy of this product to be low. 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.

About the brand

According to Cruelty-Free Kitty "Dr. Barbara Sturm" is cruelty free and so is its parent company.

Price

The product retails for 140.00$ in the United States.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 14 studies and safety reviews.

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Dr. Barbara Sturm Sun Drop SPF30 Sérum Solaire
Dr. Barbara SturmSun Drop SPF30 Sérum Solaire

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