Neutrogena Hydro Boost Water Gel Lotion Sunscreen SPF 30 Versus Dr. Barbara Sturm Sun Drops SPF 50
Updated on June 26, 2025
Overview
What they are
These products are both sunscreens. They have a total of 11 ingredients in common
Cool Features
They both contain hyaluronic acid, SPF and Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, oily skin and scar healing
Free From
They both do not contain any common allergens, oils, parabens or sulfates
What's Inside
They both contain fragrances and silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Neutrogena Hydro Boost Water Gel Lotion Sunscreen SPF 30 28 ingredients
Dr. Barbara Sturm Sun Drops SPF 50 31 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Neutrogena Hydro Boost Water Gel Lotion Sunscreen SPF 30 28 ingredients
Dr. Barbara Sturm Sun Drops SPF 50 31 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Homosalate 15%
Skin Conditioning
Octocrylene 10%
UV Absorber
Ethylhexyl Salicylate 5%
UV Absorber
Butyl Methoxydibenzoylmethane 3%
UV Absorber
Acrylates/Dimethicone Copolymer
Skin ConditioningAlcohol Denat.
Antimicrobial
Aluminum Starch Octenylsuccinate
Absorbent
Blue 1 Lake
Cosmetic ColorantButyloctyl Salicylate
Skin Conditioning
Caprylyl Methicone
Skin Conditioning
Chlorphenesin
Antimicrobial
Dimethicone
Emollient
Disodium EDTA
Glycerin
Humectant
Glyceryl Stearate
Emollient
Hydrolyzed Hyaluronic Acid
Humectant
Menthyl Lactate
MaskingParfum
Masking
Pentylene Glycol
Skin ConditioningPhenoxyethanol
Preservative
Polyurethane-62
Silica
Abrasive
Sodium Acryloyldimethyltaurate/Vp Crosspolymer
Emulsion StabilisingSodium Hydroxide
BufferingStyrene/Acrylates Copolymer
Tocopheryl Acetate
Antioxidant
Trideceth-6
EmulsifyingWater
Skin ConditioningHomosalate 15%, Octocrylene 10%, Ethylhexyl Salicylate 5%, Butyl Methoxydibenzoylmethane 3%, Acrylates/Dimethicone Copolymer, Alcohol Denat., Aluminum Starch Octenylsuccinate, Blue 1 Lake, Butyloctyl Salicylate, Caprylyl Methicone, Chlorphenesin, Dimethicone, Disodium EDTA, Glycerin, Glyceryl Stearate, Hydrolyzed Hyaluronic Acid, Menthyl Lactate, Parfum, Pentylene Glycol, Phenoxyethanol, Polyurethane-62, Silica, Sodium Acryloyldimethyltaurate/Vp Crosspolymer, Sodium Hydroxide, Styrene/Acrylates Copolymer, Tocopheryl Acetate, Trideceth-6, Water
Homosalate 10%
Skin Conditioning
Butyl Methoxydibenzoylmethane 3%
UV Absorber
Ethylhexyl Methoxycinnamate 7.5%
UV Absorber
Ethylhexyl Salicylate 5%
UV Absorber
Water
Skin ConditioningButyloctyl Salicylate
Skin Conditioning
Glycerin
Humectant
Styrene
Perfuming
Potassium Cetyl Phosphate
EmulsifyingCyclopentasiloxane
Emollient
Glyceryl Stearate
Emollient
PEG-100 Stearate
Aluminum Starch Octenylsuccinate
Absorbent
Portulaca Oleracea Extract
Skin Conditioning
Phenoxyethanol
Preservative
Tocopheryl Acetate
Antioxidant
Polyacrylate-13
Pentylene Glycol
Skin ConditioningXanthan Gum
EmulsifyingBenzoic Acid
Masking
Ethylhexylglycerin
Skin ConditioningGlycereth-2 Cocoate
Emulsifying
Sodium Hyaluronate
Humectant
Polyisobutene
Polysorbate 20
Emulsifying
Panthenol
Skin Conditioning
Arginine
Masking
Sodium Carboxymethyl Beta-Glucan
CleansingAnthemis Nobilis Flower Extract
Masking
Camellia Sinensis Leaf Extract
Antimicrobial
Cassia Alata Leaf Extract
AstringentHomosalate 10%, Butyl Methoxydibenzoylmethane 3%, Ethylhexyl Methoxycinnamate 7.5%, Ethylhexyl Salicylate 5%, Water, 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
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Aluminum Starch Octenylsuccinate is a synthetic powder used as an absorbent, thickener, and anti-caking agent.
As an absorbent, it is great at mattifying skin by soaking up the oil. This is why you'll find it in a range of products from makeup to moisturizers.
This ingredient is considered a modified starch. Starch can also be found naturally in plants.
One study from 1991 found that 5% of this ingredient enhanced titanium dioxide SPF by as much as 40%. The study found 1% titanium dioxide had a 5.6 SPF and adding 5% of aluminum starch octenylsuccinate boosted it to an SPF of 8.1
Although “aluminum” in an ingredient name can raise red flags for some consumers, the form and usage context matter significantly. For typical topical applications, there is no substantial evidence of health risks - such as cancer, neurotoxicity, or systemic “aluminum overload.”
Learn more about Aluminum Starch OctenylsuccinateAlso known as Avobenzone, this ingredient is a chemical sunscreen filter that provides protection in the UV-A range.
Avobenzone is globally approved and is the most commonly used UV-A filter in the world.
Studies have found that avobenzone becomes ineffective when exposed to UV light (it is not photostable; meaning that it breaks down in sunlight). Because of this, formulations that include avobenzone will usually contain stabilizers such as octocrylene.
However, some modern formulations (looking at you, EU!) are able to stabilize avobenzone by coating the molecules.
Avobenzone does not protect against the UV-B range, so it's important to check that the sunscreen you're using contains other UV filters that do!
The highest concentration of avobenzone permitted is 3% in the US, and 5% in the EU.
Learn more about Butyl MethoxydibenzoylmethaneButyloctyl Salicylate is similar to octisalate. It a photostabilizer, SPF booster, emollient and solvent. Its main purpose is to evenly spread out ingredients.
This ingredient is a common sunscreen ingredient carrier and photostabilizer. According to a manufacturer, it is suitable for carrying micro Titanium Dioxide, Zinc Oxide, and pigments.
Photostabilizers help stabilize UV-filters and prevents them from degrading quickly.
Due to regulation loopholes, this ingredient is not required to be labeled as an active chemical filter like other UV ingredients. This is why you'll likely find this ingredient in mineral sunscreens from the US.
According to EU regulation, this ingredient can cause harmful effects to aquatic life.
Learn more about Butyloctyl SalicylateEthylhexyl Salicylate is an organic compound used to block UV rays. It primarily absorbs UVB rays but offers a small amount of UVA protection as well.
Commonly found in sunscreens, Ethylhexyl Salicylate is created from salicylic acid and 2-ethylhexanol. You might know salicylic acid as the effective acne fighter ingredient and BHA.
The ethylhexanol in this ingredient is a fatty alcohol and helps hydrate your skin, similar to oils. It is an emollient, which means it traps moisture into the skin.
According to manufacturers, Ethylhexyl Salicylate absorbs UV wavelength of 295-315 nm, with a peak absorption at 307-310 nm. UVA rays are linked to long term skin damage, such as hyperpigmentation. UVB rays emit more energy and are capable of damaging our DNA. UVB rays cause sunburn.
Learn more about Ethylhexyl SalicylateGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinGlyceryl Stearate is a mix of glycerin and stearic acid.
It is used to stabilize the mixing of water and oil ingredients. By preventing these ingredients from separating, it can help elongate shelf life. It can also help thicken the product's texture.
As an emollient, it helps soften skin and supports barrier-replenishing ingredients.
In cosmetics, Glyceryl Stearate is often made from vegetable oils or synthetically produced.
This ingredient may not be fungal-acne safe
Fun fact: The human body also creates Glyceryl Stearate naturally.
Learn more about Glyceryl StearateHomosalate is a chemical sunscreen filter that provides protection in the UV-B range (280nm - 320 nm), with a peak protection at 306 nm. It is internationally approved for use in sunscreens.
Homosalate is not photo-stable, meaning it's strength as a UV filter degrades over time with exposure to the sun. Because of this, it's often used in combination with other chemical sunscreen filters as avobenzone (which protects from the UV-A range). Homosalate also helps act as a solvent for harder-to-dissolve UV filters.
(Part of the reason that sunscreens need to be frequently re-applied is due to the photo instability of many chemical sunscreen filters)
Currently, homosalate is approved in concentrations up to 10% in the EU and 15% in the US. The FDA is currently doing further research on the effects of homosalate, and it is possible that these approved concentrations will change in the future.
Learn more about HomosalatePentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.
One study found using Tocopheryl Acetate with Vitamin C decreased the number of sunburned cells.
Tocopheryl Acetate is commonly found in both skincare and dietary supplements.
Learn more about Tocopheryl AcetateWater. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterIngredient Ratings
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When to use
Neutrogena Hydro Boost Water Gel Lotion Sunscreen SPF 30 28 ingredients
Dr. Barbara Sturm Sun Drops SPF 50 31 ingredients
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