Dr. Barbara Sturm Sun Drops SPF 50 Review

Dr. Barbara Sturm Sun Drops SPF 50
2.0
/ 10
Moisturizing
4.1 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
50
SPF icon
SPF
Ingredients

Dr. Barbara Sturm Sun Drops SPF 50 Ingredients

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Full Ingredient List (INCI):

Water, Homosalate, Octinoxate, Octisalate, Avobenzone, Butyloctyl Salicylate, Glycerin, Styrene, Potassium Cetyl Phosphate, Cyclopentasiloxane, Glyceryl Stearate, PEG-100 Stearate, Aluminum Starch Octenylsuccinate, Portulaca Oleracea Extract, Phenoxyethanol, Tocopheryl Acetate, Polyacrylate-13, Pentylene Glycol, Xanthan Gum, Benzoic Acid, Ethylhexylglycerin, Glycereth-2 Cocoate, Sodium Hyaluronate, Polyisobutene, Polysorbate 20, Panthenol, Arginine, Sodium Carboxymethyl Beta-Glucan, Anthemis Nobilis Flower Extract, Camellia Sinensis Leaf Extract, Cassia Alata Leaf Extract
Review

Does Dr. Barbara Sturm Sun Drops SPF 50 Work?

 
According to CreamScan's analysis of the ingredient list, here’s what Dr. Barbara Sturm Sun Drops SPF 50 has to offer:
 
✅ Light moisturizing. It has a moisturizing rating of 2.0 out of 10.
✅ Very high sun protection for prolonged sun exposure, such as spending the day at the beach, hiking, or outdoor sports.

  

Key Benefits of Dr. Barbara Sturm Sun Drops SPF 50

 
These are the key benefits you can expect from using Dr. Barbara Sturm Sun Drops SPF 50:
 

🔵 Lightweight Purely Humectant Moisturizer Suitable for Oily Skin

According to CreamScan analysis, Dr. Barbara Sturm Sun Drops SPF 50 is lightly moisturizing, with a moisturizing rating of 2.0 out of 10.

Is it more humectant or occlusive? Purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a moderate humectancy of 4.1 out of 10, primarily due to the high content of Glycerin (est. ≈2.0%).

This product, when used alone as a moisturizer, can provide light humectant hydration in a fast-absorbing formula without any occlusive ingredients. This could work for people with oily skin who need a basic level of hydration.

📌 Certain studies suggest that humectants alone may not effectively moisturize the skin. If you use this product as your only moisturizer, we recommend following it with one that contains at least some occlusive ingredients.

💧 A Humectant Add-on for Any Skincare Routine

But it’s not limited to oily skin - since it contains a moderate amount of humectants, such a humectant add-on will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer.

Please refer to the Ratings section below for details of the moisturizing rating calculation.

☀️☀️☀️ Very High Sun Protection for Prolonged Sun Exposure, All Skin Types, and High-risk Conditions

With an SPF of 50, Dr. Barbara Sturm Sun Drops SPF 50 provides very high sun protection, suitable for intense sun exposure in tropical climates, beach vacations, or high-altitude environments.

This level of SPF blocks 98% or more of UVB rays, offering the highest level of defense against sunburn. Broad-spectrum formulations also provide strong protection against UVA rays, which are responsible for skin aging, pigmentation, and DNA damage.

📌 For optimal protection, choose products labeled broad-spectrum to ensure defense against both UVA rays, which contribute to skin aging and pigmentation, and UVB rays that cause sunburn.

This level of SPF is ideal for all skin types, particularly fair, sensitive, or post-treatment skin (e.g., after laser or chemical procedures). It is also highly recommended for individuals at greater risk of skin cancer.

For extended outdoor activities or water exposure, choose a water-resistant formula and reapply every two hours for maximum effectiveness.

📌 Please note that this is not a complete list of benefits. We are in the process of enhancing our model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Things to Be Aware Of: Dr. Barbara Sturm Sun Drops SPF 50

 
CreamScan identified a few things to consider before adding Dr. Barbara Sturm Sun Drops SPF 50 to your skincare routine:
 

⚠️ If It’s Your Only Moisturizer, It Needs to Be Paired with Some Occlusives

While humectants are highly effective at attracting water to the skin, studies (J. N. Kraft, C. W. Lynde) suggest they may not be efficient when used alone.

One major drawback of purely humectant moisturization is that the water attracted by humectants to the upper layers of the skin can evaporate completely into the environment through transepidermal water loss (TEWL). Adding occlusive ingredients helps seal this moisture into the skin and prevent further water loss.

If you’re using Dr. Barbara Sturm Sun Drops SPF 50 as your only moisturizer, consider pairing it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones. These work alongside humectants to create a protective barrier, locking in hydration and ensuring longer-lasting moisturization. The amount of occlusive needed depends on your skin type - the drier the skin, the more occlusives it requires.

If this product is used not as a standalone moisturizer but as part of your skincare routine, such as a toner or serum, it should be applied before your main moisturizer (unless it's a sunscreen), which will provide the necessary occlusivity on top of it.

⚠️ Questionable anti-wrinkle efficacy

If one of your main reasons for choosing Dr. Barbara Sturm Sun Drops SPF 50 is its potential anti-aging effects, please note that, according to CreamScan analysis, it currently has a zero anti-wrinkle rating.

It contains Camellia Sinensis Leaf Extract, an ingredient often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Camellia Sinensis Leaf Extract provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards.

While this does not categorically rule out the possibility that Camellia Sinensis Leaf Extract may reduce wrinkles, its efficacy is not supported by convincing, vehicle-controlled, double-blind clinical studies - at least none that were available to the CreamScan team at the time of publication.

Therefore, this ingredient does not generate the anti-wrinkle rating.

📌 Moisturizers, when used regularly, are proven to prevent wrinkle formation and even reduce existing wrinkles. Therefore, this product, like any other moisturizer, can deliver some anti-wrinkle effects through its moisturizing action.

Please refer to the Ratings section below for details of the anti-wrinkle rating calculation.

Pros & Cons of Dr. Barbara Sturm Sun Drops SPF 50

 
Here’s an overview of the pros and cons of Dr. Barbara Sturm Sun Drops SPF 50 to help you decide if it’s the right choice for your skincare routine:
 

🟩 Pros:

✅ When used alone: Provides moderate humectant moisturizing suitable for oily skin
✅ As part of a routine: A humectant moisturizing enhancement, beneficial for any skin type
✅ Lightweight texture
✅ Provides very high sun protection, ideal for intense sun exposure in tropical climates, high-altitude environments, and beach vacations, suitable for all skin types
 

⭕ Cons: 

⚠️ Only if used as a standalone moisturizer - it needs to be paired with occlusives to seal in humectants
⚠️ Questionable anti-wrinkle efficacy
   

Summary: Dr. Barbara Sturm Sun Drops SPF 50

 
Based on the ingredient list analysis, CreamScan AI suggests that Dr. Barbara Sturm Sun Drops SPF 50
, when used alone, provides lightweight, moderate humectant moisturizing, making it suitable for oily skin. As part of a moisturizing routine, it offers a subtle humectant enhancement, beneficial for all skin types.
 
With an SPF of 50, Dr. Barbara Sturm Sun Drops SPF 50 delivers very high sun protection, perfect for intense sun exposure in tropical climates, high-altitude settings, and beach vacations, and suitable for all skin types.
 
That said, there are some things about Dr. Barbara Sturm Sun Drops SPF 50 worth noting.
 
Looking at its moisturizing profile, we found that it doesn’t contain any occlusive ingredients, potentially allowing the moisture attracted to the skin by humectants to evaporate. Therefore, if it’s used as the only moisturizer in a routine, it’s recommended to pair it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones.
 
If one of your main reasons for considering Dr. Barbara Sturm Sun Drops SPF 50 is its potential anti-aging effects, please note that, according to CreamScan analysis, its anti-wrinkle efficacy is questionable. None of the ingredients in this product provide substantial evidence of their anti-wrinkle efficacy according to CreamScan Research Evaluation Standards.
 
📌 Fact check. At CreamScan, we are committed to accuracy and fairness. If you spot any errors or something that doesn’t seem right, please click here to let us know. We regularly update the ingredient lists and monitor the latest research on ingredient efficacy to ensure that our information remains as complete and precise as possible. The information provided here is for informational purposes only and does not substitute professional advice. We do not guarantee the efficacy or safety of any product, as individual results may vary.

 

Ingredient Breakdown

Est. % Ingredient Origin Functions
60
10
7.5
5
3
2.5
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Homosalate
Function:
Origin:
Octinoxate
Function:
Origin:
Octisalate
Function:
Origin:
Avobenzone
Function:
Origin:
Butyloctyl Salicylate
Function:
Origin:
Glycerin
Function:
Origin:
Styrene
Function:
Origin:
Potassium Cetyl Phosphate
Function:
Origin:
Cyclopentasiloxane
Function:
Origin:
Glyceryl Stearate
Function:
Origin:
PEG-100 Stearate
Function:
Origin:
Aluminum Starch Octenylsuccinate
Function:
Origin:
Portulaca Oleracea Extract
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Tocopheryl Acetate
Function:
Origin:
Polyacrylate-13
Function:
Origin:
Pentylene Glycol
Function:
Origin:
Xanthan Gum
Function:
Origin:
Benzoic Acid
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:
Glycereth-2 Cocoate
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Polyisobutene
Function:
Origin:
Polysorbate 20
Function:
Origin:
Panthenol
Function:
Origin:
Arginine
Function:
Origin:
Sodium Carboxymethyl Beta-Glucan
Function:
Origin:
Anthemis Nobilis Flower Extract
Function:
Origin:
Camellia Sinensis Leaf Extract
Function:
Origin:
Cassia Alata Leaf Extract
Function:
Origin:

Ratings

All humectants
4.1
2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
2.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 4.1 10
4.1
2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
2.0
Ingredient Est. % Benchmark Humectancy
2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All humectants 4.1 10
4.1
All humectants
4.1
2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
None
All occlusives 0.0 20
0.0
All occlusives
0.0
None
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
n/a
- 0.3 -
Total
0
Camellia Sinensis Leaf Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
0.3
0.3
0.3
All antioxidants 1.2 3 No
All antioxidants
1.2
Portulaca Oleracea Extract
0.3
Tocopheryl Acetate
0.3
Sodium Hyaluronate
0.3
Camellia Sinensis Leaf Extract
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
0.3
0.3
0.3
0.3
All soothing 1.5 5 No
All soothing
1.5
0.3
0.3
0.3
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %60
Function
Origin
WaterThe most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.
Homosalate
Est. %10
Function
Origin
HomosalateA synthetic chemical UV filter that protects against harmful UVB radiation.
Octinoxate
Est. %7.5
Function
Origin
OctinoxateA chemical sunscreen also known as ethylhexyl methoxycinnamate. It protects against UVB, which causes the skin to burn and tan and can lead to certain types of skin cancers. For broad-spectrum protection claims, octinoxate should be paired with a UVA sunscreen.
Octisalate
Est. %5
Function
Origin
OctisalateA UVB sunscreen also known as ethylhexyl salicylate. It is normally paired with UVA sunscreens to provide broad-spectrum protection. Octisalate also protects other ingredients, like colorants and antioxidants, from deterioration due to exposure to UV light.
Avobenzone
Est. %3
Function
Origin
AvobenzoneA popular sunscreen that protects against UVA rays, which cause premature aging and skin cancer. Avobenzone degrades after about 30 minutes of sun exposure and becomes ineffective. It is therefore often paired with UV-filter stabilizers such as octocrylene.
Butyloctyl Salicylate
Est. %2.5
Function
Origin
Butyloctyl SalicylateA synthetic emollient and solvent. It is primarily used as a carrier oil to disperse minerals in, including pigments and sunscreen minerals. It can also absorb UV light, thus boosting the SPF of sunscreen products.
Glycerin
Est. %2
Function
Origin
Glycerin

The most popular moisturizing ingredient in the world. It is a powerful humectant – cheap yet very effective.

Styrene
Est. %1.5
Function
Origin
Styrene
Potassium Cetyl Phosphate
Est. %1.3
Function
Origin
Potassium Cetyl PhosphateA powerful emulsifier that can even mix particularly problematic water and oil blends. It is also a surfactant perfect for cleansing products that effectively rinse off oil and dirt particles from the surface of the skin.
Cyclopentasiloxane
Est. %1
Function
Origin
CyclopentasiloxaneA lightweight, fast-spreading emollient that leaves a very soft and silky after-feel on the skin. Supplied as a clear and colorless liquid, cyclopentasiloxane is often used as a solvent to dissolve other silicones in.
Glyceryl Stearate
Est. %0.3
Function
Origin
Glyceryl StearateAn emollient and emulsifier typically derived from vegetable sources through a chemical reaction with glycerin. It provides stability, texture, and consistency to formulations. Its main function is to allow oil and water to mix.
PEG-100 Stearate
Est. %0.3
Function
Origin
PEG-100 StearateThis surfactant is more specifically classified as an emulsifier that produces oil-in-water emulsions. PEG-100 stearate can also be used as a cleansing agent.
Aluminum Starch Octenylsuccinate
Est. %0.3
Function
Origin
Aluminum Starch OctenylsuccinateAn absorbent that takes in oils from the skin to reduce the oily sheen. It can also absorb oils from the skincare product itself, resulting in a softer, less greasy product, normally with better spreadability and less tack.
Portulaca Oleracea Extract
Est. %0.3
Function
Origin
Portulaca Oleracea ExtractDerived from green or common purslane, this moisturizing extract is particularly rich in alpha-linolenic acid, an omega-3 fatty acid, and contains antioxidant glutathione and vitamin E. As a herbal medicine, it is believed to treat headaches and inflammation.
Phenoxyethanol
Est. %0.3
Function
Origin
PhenoxyethanolThe most frequently used preservative in skincare. It is a clear, oil-like liquid synthetic substance that protects products from harmful bacteria and yeast, whilst still leaving skin microflora unharmed. It is confirmed by research to be harmless.
Tocopheryl Acetate
Est. %0.3
Function
Origin
Tocopheryl Acetate

An antioxidant derivative of tocopherol (vitamin E). It helps to protect cells from free radicals and UV damage through the conversion to active vitamin E in the skin. It is more stable than tocopherol.

Polyacrylate-13
Est. %0.3
Function
Origin
Polyacrylate-13A synthetic, film-forming ingredient that creates a network around other ingredients in the formula and protects them from being easily washed away.
Pentylene Glycol
Est. %0.3
Function
Origin
Pentylene Glycol

A naturally or synthetically derived preservative that exhibits effective antifungal and antibacterial traits. It also acts as a booster for more traditional preservatives. Pentylene glycol can also serve as a moisturizing humectant and solvent.

Xanthan Gum
Est. %0.3
Function
Origin
Xanthan GumA natural multi-functional ingredient that originates from fermented sugars. Xanthan gum acts as a viscosity-building agent to thicken skincare products. It is also an excellent stabilizer and works well to hold other ingredients together.
Benzoic Acid
Est. %0.3
Function
Origin
Benzoic AcidA preservative effective against fungi, yeast, and some bacteria. It is commonly paired with phenoxyethanol to create a broad spectrum preservation system. Benzoic acid can also serve as a pH adjuster, fragrance, and bulking agent.
Ethylhexylglycerin
Est. %0.3
Function
Origin
EthylhexylglycerinA preservative booster derived from glycerin. It is commonly paired with other preservatives to improve their efficacy. Ethylhexylglycerin is also a humectant due to its chemical base of glycerin.
Glycereth-2 Cocoate
Est. %0.3
Function
Origin
Glycereth-2 Cocoate
Sodium Hyaluronate
Est. %0.3
Function
Origin
Sodium Hyaluronate

A sodium salt of famous hyaluronic acid. A potent humectant that hydrates the skin, supports collagen function, and fills out small wrinkles. Sodium hyaluronate also offers soothing and antioxidant properties.

Polyisobutene
Est. %0.3
Function
Origin
PolyisobuteneA highly viscous liquid that is used in lip gloss formulations to prolong wear time and add shimmer. Polyisobutene dramatically increases the thickness of skincare products it is added to.
Polysorbate 20
Est. %0.3
Function
Origin
Polysorbate 20A viscous, amber-colored liquid that functions as a solubilizer to disperse small amounts of oil into a large water phase. Polysorbate 20 is frequently used to solubilize fragrance oils into water-based emulsions.
Panthenol
Est. %0.3
Function
Origin
PanthenolA popular soothing and moisturizing derivative of vitamin B5. Panthenol is particularly beneficial for dry, flaking, burned, or damaged skin. It is used to alleviate the symptoms of a rash, dermatitis, eczema, chapped lips, and sunburn.
Arginine
Est. %0.3
Function
Origin
ArginineA humectant amino acid used to attract water to the skin’s surface. It is a part of the skin's Natural Moisturizing Factor, a mixture of various compounds that keeps the skin’s surface well hydrated. Arginine can also be used as a pH adjuster.
Sodium Carboxymethyl Beta-Glucan
Est. %0.3
Function
Origin
Sodium Carboxymethyl Beta-Glucan
Anthemis Nobilis Flower Extract
Est. %0.3
Function
Origin
Anthemis Nobilis Flower ExtractAn antioxidant and soothing flower extract derived from Roman chamomile. It contains an essential oil that gives it a sweet and floral aroma.
Camellia Sinensis Leaf Extract
Est. %0.3
Function
Origin
Camellia Sinensis Leaf Extract

An antioxidant green tea extract. In the deeper layers, it slows down the destruction of collagen, elastin, and hyaluronic acid – thus delaying the signs of aging. It also acts as an anti-acne, soothing, moisturizing, and emollient ingredient.

Cassia Alata Leaf Extract
Est. %0.3
Function
Origin
Cassia Alata Leaf ExtractAn extract derived from the leaves of the candle bush that contains powerful antifungal phytochemicals called anthraquinones. It is aimed at problematic and acne-prone skin.