Hypotaurine – amino acid, taurine precursor. In sunscreens works as a secondary antioxidant: stabilizes photo-unstable avobenzone, extending UVA protection duration. Safe, no standalone cosmetic effects.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
Functional sunscreen stabilizer. Works not as a cosmetic active but as a formula adjuvant – protects avobenzone from photodegradation (in vitro data). Safety confirmed.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
Aminoethanesulfinic Acid is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Aminoethanesulfinic Acid suits: normal, dry, combination, oily, sensitive.
Hypotaurine – amino acid, taurine precursor.
The INCI name is Aminoethanesulfinic Acid. It may also appear as: Hypotaurine, Гипотаурин, Аминоэтансульфиновая кислота.
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