Alastin SilkShield All Mineral Sunscreen SPF 30 with TriHex Technology (1.9 fl oz)
Analysis updated August 2026 · How Scout scores
At a glance
Summary
This sunscreen features zinc oxide as its primary UV filter, which is a safe and effective mineral option. It includes beneficial ingredients like squalane and peptides that support skin health and anti-aging. However, the presence of synthetic polymers and silicones indicates a moderate level of processing, which slightly impacts its overall rating.
Key ingredients 20
SqualaneVery Good
Squalane is a highly effective emollient and natural antioxidant. It mimics the skin's natural oils, making it an excellent moisturizer. It is non-irritating and suitable for all skin types, including sensitive skin.
Risks
Squalane is generally considered safe with no significant risks.
Benefits
It helps to hydrate and maintain the skin's moisture barrier, improving skin texture and appearance.
Palmitoyl Hexapeptide-12Very Good
Palmitoyl Hexapeptide-12 is a peptide that helps to stimulate collagen production. It is known for its anti-aging properties, reducing the appearance of fine lines and wrinkles. It is well-tolerated by most skin types.
Risks
There are minimal risks, primarily related to potential allergic reactions in very sensitive individuals.
Benefits
It promotes skin firmness and elasticity, contributing to a more youthful appearance.
Palmitoyl Tripeptide-1Very Good
Palmitoyl Tripeptide-1 is a synthetic peptide that mimics the skin's natural regeneration process. It is effective in reducing the appearance of wrinkles and improving skin texture. It is generally well-tolerated and suitable for most skin types.
Risks
Potential risks are minimal, with rare cases of skin irritation in sensitive individuals.
Benefits
It enhances skin repair and regeneration, leading to smoother and more resilient skin.
TocopherolVery Good
Tocopherol, also known as Vitamin E, is a powerful antioxidant that protects the skin from free radical damage. It is known for its moisturizing and healing properties. It is widely used in skincare for its ability to improve skin health.
Risks
Tocopherol is generally safe, with rare cases of allergic reactions in sensitive individuals.
Benefits
It helps to nourish and protect the skin, enhancing its natural barrier function.
Zinc OxideGood
Zinc Oxide is a mineral sunscreen agent that provides broad-spectrum UV protection. It is considered safe and effective for sensitive skin. It is non-comedogenic and does not penetrate the skin, making it a preferred choice for physical sunblock.
Risks
There are minimal risks associated with Zinc Oxide, primarily related to potential whitening effect on the skin.
Benefits
It offers excellent protection against both UVA and UVB rays and is suitable for sensitive skin types.
CyclopentasiloxaneNeutral
Cyclopentasiloxane is a volatile silicone that provides a silky texture and smooth application. It evaporates quickly, leaving no residue on the skin. It is commonly used in cosmetics for its lightweight feel.
Risks
There are minimal risks, primarily related to potential environmental concerns.
Benefits
It enhances the spreadability of products and provides a smooth, non-greasy finish.
Polysilicone-11Neutral
Polysilicone-11 is a silicone elastomer that provides a soft, powdery feel to the skin. It is used to improve the texture and application of cosmetic products. It is non-irritating and suitable for most skin types.
Risks
There are minimal risks, primarily related to potential environmental impact.
Benefits
It enhances the sensory experience of products, providing a smooth and matte finish.
Polyglyceryl-3 Polydimethylsiloxyethyl DimethiconeNeutral
This ingredient is a silicone-based emulsifier that helps to blend water and oil components in formulations. It provides a smooth application and enhances the stability of products. It is generally well-tolerated by the skin.
Risks
There are minimal risks, primarily related to potential buildup on the skin.
Benefits
It improves the texture and consistency of products, ensuring even application.
HDI/Trimethylol Hexyllactone CrosspolymerNeutral
This ingredient is a polymer used to enhance the texture and feel of cosmetic products. It provides a smooth, velvety finish and helps to absorb excess oil. It is non-irritating and suitable for most skin types.
Risks
There are minimal risks, primarily related to potential environmental concerns.
Benefits
It improves the sensory experience of products, providing a matte and smooth finish.
Methyl Methacrylate CrosspolymerNeutral
This ingredient is a polymer used to enhance the texture and feel of cosmetic products. It provides a smooth, matte finish and helps to absorb excess oil. It is non-irritating and suitable for most skin types.
Risks
There are minimal risks, primarily related to potential environmental concerns.
Benefits
It improves the sensory experience of products, providing a matte and smooth finish.
Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl DimethiconeNeutral
This ingredient is a silicone-based compound used to enhance the texture and application of cosmetic products. It provides a smooth, silky feel and helps to improve the spreadability of formulations. It is generally well-tolerated by the skin.
Risks
There are minimal risks, primarily related to potential buildup on the skin.
Benefits
It enhances the sensory experience of products, providing a smooth and even application.
Dunaliella Salina ExtractNeutral
Dunaliella Salina Extract is derived from microalgae and is known for its antioxidant properties. It helps to protect the skin from environmental stressors. It is generally well-tolerated and suitable for most skin types.
Risks
There are minimal risks, primarily related to potential allergic reactions in sensitive individuals.
Benefits
It provides antioxidant protection, helping to maintain healthy and resilient skin.
EctoinNeutral
Ectoin is a natural compound known for its protective and moisturizing properties. It helps to stabilize cell membranes and protect the skin from environmental stressors. It is generally well-tolerated and suitable for most skin types.
Risks
There are minimal risks, primarily related to potential allergic reactions in sensitive individuals.
Benefits
It provides hydration and protection, enhancing the skin's natural barrier function.
Hydroxymethoxyphenyl DecanoneNeutral
Hydroxymethoxyphenyl Decanone is a synthetic compound used for its antioxidant properties. It helps to protect the skin from free radical damage. It is generally well-tolerated and suitable for most skin types.
Risks
There are minimal risks, primarily related to potential allergic reactions in sensitive individuals.
Benefits
It provides antioxidant protection, helping to maintain healthy and resilient skin.
Caprylic/Capric TriglycerideNeutral
Caprylic/Capric Triglyceride is a mixed triester derived from coconut oil and glycerin. It is used as an emollient and skin-replenishing ingredient. It is non-irritating and suitable for most skin types.
Risks
There are minimal risks, primarily related to potential allergic reactions in sensitive individuals.
Benefits
It provides lightweight moisture and helps to improve the texture and feel of products.
Stearalkonium HectoriteNeutral
Stearalkonium Hectorite is a clay-derived thickening agent used to stabilize emulsions. It provides a smooth texture and enhances the spreadability of products. It is generally well-tolerated by the skin.
Risks
There are minimal risks, primarily related to potential buildup on the skin.
Benefits
It improves the texture and consistency of products, ensuring even application.
Disteardimonium HectoriteNeutral
Disteardimonium Hectorite is a clay-derived thickening agent used to stabilize emulsions. It provides a smooth texture and enhances the spreadability of products. It is generally well-tolerated by the skin.
Risks
There are minimal risks, primarily related to potential buildup on the skin.
Benefits
It improves the texture and consistency of products, ensuring even application.
Pentaerythrityl TetraisostearateNeutral
Pentaerythrityl Tetraisostearate is an ester used as an emollient and skin-conditioning agent. It provides a smooth, silky feel and enhances the spreadability of products. It is generally well-tolerated by the skin.
Risks
There are minimal risks, primarily related to potential buildup on the skin.
Benefits
It improves the texture and feel of products, providing a smooth and even application.
Propylene CarbonateNeutral
Propylene Carbonate is a solvent used to dissolve other ingredients in formulations. It enhances the texture and application of products. It is generally well-tolerated by the skin.
Risks
There are minimal risks, primarily related to potential irritation in very sensitive individuals.
Benefits
It improves the consistency and spreadability of products, ensuring even application.
DimethiconeBad
Occlusive silicone film-former — flagged under clean-beauty doctrine.
Risks
There are minimal risks, primarily related to potential buildup on the skin with prolonged use.
Benefits
It provides a silky, smooth feel to the skin and helps to lock in moisture.
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