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Aminoethanesulfinic Acid

What Aminoethanesulfinic Acid is & what it does

Aminoethanesulfinic Acid, also known as hypotaurine, is a small sulfur-containing amino acid derivative related to taurine. In cosmetic formulas it is generally used as a conditioning ingredient and is associated with antioxidant-type properties. Its small, water-friendly structure lets it blend easily into the water phase of a product.

What does Aminoethanesulfinic Acid do in skincare?

Aminoethanesulfinic Acid, also called hypotaurine, is a small amino-acid derivative used as a conditioning ingredient. It is associated with antioxidant-type properties in formulas. Its small, water-soluble structure lets it blend easily into the water phase of a product.

Is Aminoethanesulfinic Acid safe?

Aminoethanesulfinic Acid is a taurine-related compound used in cosmetics at low levels and is generally regarded as well tolerated. As with any ingredient, individual sensitivity can vary. If you have specific concerns, patch testing or professional advice is reasonable.

Is Aminoethanesulfinic Acid natural or synthetic?

Aminoethanesulfinic Acid (hypotaurine) occurs naturally in the body as part of taurine metabolism, but the version used in cosmetics is typically produced synthetically for purity and consistency. Functionally the synthetic form matches the naturally occurring molecule.

Sunscreens with Aminoethanesulfinic Acid

We rate 7 sunscreens that contain it:

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