Explore Routine Login
Versus

Alastin Skinshield All Mineral SPF30 Versus SkinMedica Essential Defense Mineral Shield SPF 35

Sunscreen
Sunscreen
American Brand United States
American Brand United States

Overview

What they are

These products are both reef safe sunscreens. They have a total of 4 ingredients in common

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens or sulfates

What's Inside

They both contain 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

Click any item below to learn more and see relevant ingredients
spf rating
30
spf rating
35

At a glance

Click on any of the items below to learn more

Notable Ingredients

Benefits

Concerns

Concerns

Ingredients Side-by-side

found in both products
Skinshield All Mineral SPF30
Dimethicone Emollient, Skin Conditioning, Skin Protecting
1 / 0 Silicon Icon
SiliconSilicon Icon

Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.

1 Com. / 0 Irr.
Very Disliked Full details ->
Cyclopentasiloxane Emollient, Skin Conditioning, Solvent
Silicon Icon
SiliconSilicon Icon

Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.

Disliked Full details ->
Polysilicone-11

We don't have a description for Polysilicone-11.

Disliked Full details ->
Squalane Emollient, Skin Conditioning
1 / 0 Helps hydrate Dry Skin Icon
Helps hydrate Dry SkinHelps hydrate Dry Skin Icon

Squalane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.

1 Com. / 0 Irr.
Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone Skin Conditioning
Silicon Icon
SiliconSilicon Icon

Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone is a type of silicone.

Very Disliked Full details ->
Hdi/Trimethylol Hexyllactone Crosspolymer

We don't have a description for Hdi/Trimethylol Hexyllactone Crosspolymer.

Unknown Full details ->
Methyl Methacrylate Crosspolymer

We don't have a description for Methyl Methacrylate Crosspolymer.

Disliked Full details ->
Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl Dimethicone Skin Conditioning
Silicon Icon
SiliconSilicon Icon

Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl Dimethicone is a type of silicone.

Unknown Full details ->
Palmitoyl Tripeptide-1 Skin Conditioning
Peptide IconNot safe for Fungal Acne Icon
PeptidePeptide Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Palmitoyl Tripeptide-1 is a 3-amino acid peptide. Peptides are building blocks for protein.

Dunaliella Salina Extract Skin Conditioning

We don't have a description for Dunaliella Salina Extract.

Disliked Full details ->
Ectoin Skin Conditioning

Ectoin is a compound found naturally in some species of bacteria. It can be synthetically created for skincare use.

Hydroxymethoxyphenyl Decanone Skin Conditioning

Hydroxymethoxyphenyl Decanone is a synthetically created molecule made to mimic ginger extract.

Tocopherol Antioxidant, Masking, Skin Conditioning
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation Icon
Vitamin EVitamin E Icon AntioxidantAntioxidant Icon 4 Benefits May cause irritationMay cause irritation Icon

Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.

0-3 Com. / 0-3 Irr.
Caprylic/Capric Triglyceride Masking, Skin Conditioning

Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.

Stearalkonium Hectorite Gel Forming

We don't have a description for Stearalkonium Hectorite.

Unknown Full details ->
Disteardimonium Hectorite Stabilising

Disteardimonium Hectorite comes from the clay mineral named hectorite. It is used to add thickness to a product.

Disliked Full details ->
Pentaerythrityl Tetraisostearate Emollient, Emulsifying
2 / 0 Not safe for Fungal Acne Icon
Not safe for Fungal AcneNot safe for Fungal Acne Icon

Pentaerythrityl Tetraisostearate is derived from isostearic acid. It is an emollient and emulsifier.

2 Com. / 0 Irr.
Very Disliked Full details ->
Propylene Carbonate Solvent

This ingredient is a solvent. It helps dissolve active ingredients and alter the texture of products.

Unknown Full details ->
Essential Defense Mineral Shield SPF 35
Water Skin Conditioning, Solvent

Water. 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.

Cyclopentasiloxane Emollient, Skin Conditioning, Solvent
Silicon Icon
SiliconSilicon Icon

Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.

Disliked Full details ->
Dimethicone Emollient, Skin Conditioning, Skin Protecting
1 / 0 Silicon Icon
SiliconSilicon Icon

Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.

1 Com. / 0 Irr.
Very Disliked Full details ->
Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone Skin Conditioning
Silicon Icon
SiliconSilicon Icon

Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone is a type of silicone.

Very Disliked Full details ->
Butylene Glycol Humectant, Masking, Skin Conditioning
1 / 0

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

1 Com. / 0 Irr.
Aluminum Hydroxide Emollient, Humectant, Skin Protecting

Aluminum Hydroxide is a form of aluminum. It can be naturally found in nature as the mineral gibbsite. In cosmetics, Aluminum Hydroxide is used as a colorant, pH adjuster, and absorbent.

Disliked Full details ->
Dimethicone/Peg-10/15 Crosspolymer

We don't have a description for Dimethicone/Peg-10/15 Crosspolymer.

Very Disliked Full details ->
Peg-9 Polydimethylsiloxyethyl Dimethicone Emulsifying, Skin Conditioning
Silicon Icon
SiliconSilicon Icon

Peg-9 Polydimethylsiloxyethyl Dimethicone is a type of silicone.

Very Disliked Full details ->
Sodium Chloride Masking
Can worsen Dry Skin IconBad for Acne Prone Skin IconMay worsen Rosacea Icon
3 Concerns

Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.

Very Disliked Full details ->
Caffeine Skin Conditioning

Caffeine is most associated with coffee, tea, and cacao. In skincare, it helps with calming inflammation and anti-aging.

Camellia Oleifera Leaf Extract Astringent, Skin Conditioning

Camellia Oleifera Leaf Extract is the extract of the leaves of Camellia Oleifera, Theaceae.

Sodium Citrate Buffering, Masking

Sodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.

Dimethicone/Vinyl Dimethicone Crosspolymer Skin Conditioning

Dimethicone/Vinyl Dimethicone Crosspolymer is a silicone used to improve the texture of products and absorb oil. It does not get absorbed into the skin.

Very Disliked Full details ->
Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl Dimethicone Skin Conditioning
Silicon Icon
SiliconSilicon Icon

Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl Dimethicone is a type of silicone.

Unknown Full details ->
Stearic Acid Cleansing, Emulsifying, Emulsion Stabilising
2-3 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon
2 Concerns

Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.

2-3 Com. / 0 Irr.
Very Disliked Full details ->
Ethylhexylglycerin Skin Conditioning

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

Phenoxyethanol Preservative
Preservative Icon
PreservativePreservative Icon

Phenoxyethanol 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.

Very Disliked Full details ->

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Emollient, Skin Conditioning, Skin Protecting
Very Disliked

Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.

Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.

Emollient, Skin Conditioning, Solvent
Disliked

Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.

D5 is considered lightweight and volatile. Volatile means it evaporates quickly after application. Once evaporated, D5 leaves a thin barrier that helps keep skin hydrated.

D5 is an emollient. Emollients help soften the skin and prevent water loss. Silicones create a silky texture in products. D5 helps other ingredients become more spreadable.

Studies show D5 is safe to use in skincare products. We recommend speaking with a skincare professional if you have concerns.

Learn more about Cyclopentasiloxane
Skin Conditioning
Very Disliked

Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone is a type of silicone.

Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl Dimethicone is a type of silicone.

Ingredient Ratings

Here's what our community thinks of the ingredients in these products.

Skinshield All Mineral SPF30
5
1
8
4
liked
mixed
disliked
not rated
Essential Defense Mineral Shield SPF 35
3
3
10
1
liked
mixed
disliked
not rated

When to use

2 Routines
100% use in am
0% use in pm
50% use every day
4 Routines
100% use in am
0% use in pm
100% use every day