Stearoyl Glutamic Acid
What Stearoyl Glutamic Acid is & what it does
Stearoyl Glutamic Acid is an amino-acid-derived ingredient made by combining stearic acid, a fatty acid, with glutamic acid. In skincare and sunscreen formulas it acts as a surfactant and emulsion stabilizer, helping the oil and water phases blend into a smooth, stable product. Being based on a fatty acid and an amino acid, it is often chosen as a mild, skin-friendly emulsifier.
What does Stearoyl Glutamic Acid do in skincare?
Stearoyl Glutamic Acid is an amino-acid-derived ingredient used as a surfactant and emulsion stabilizer. In creams and sunscreens it helps the oil and water phases blend into a smooth, stable product.
Is Stearoyl Glutamic Acid safe?
Built from a fatty acid and glutamic acid, Stearoyl Glutamic Acid is generally treated as a mild, skin-friendly emulsifier in cosmetic use. Individual sensitivity is always possible, so a patch test is reasonable for reactive skin.
Is Stearoyl Glutamic Acid natural or synthetic?
It is usually described as a nature-derived ingredient processed in the lab. The stearic acid and glutamic acid building blocks can come from plant sources, which are then combined to form the final compound.
Sunscreens with Stearoyl Glutamic Acid
We rate 21 sunscreens that contain it, showing the top 10 by overall score:
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Standard Beauty SPF 50+ The Mattifying One
91/100
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Dermasence Hyalusome Day Cream With SPF 50
87/100
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Biore Biore Uv Kids Milk Spf 50
86/100
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Kao Biore UV Aqua Rich Watery Gel Multi-vitamin SPF 50+ Pa++++
82/100
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Biore UV Aqua Rich Airy Hold Cream SPF 50+ Pa++++
82/100
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Kao Biore UV Aqua Rich Watery Gel SPF 50+ Pa++++
82/100
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Biore UV Aqua Rich Watery Gel SPF 50 Pa++++ Cool Edition
81/100
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Biore UV Aqua Rich Watery Essence Spf50+ Pa++++ (2019 formula)
80/100
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Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ Pa++++ (2023)
79/100
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Shakeup Cosmetics Let's Face It BB Tinted Moisturizer SPF 25
79/100