R 1,3 ButanediolR 1,3 Butanediol is the non-racemic, bioavailable form of 1,3 Butanediol (not to be confused with 1,4 butanediol), which is a FDA GRAS (Generally Recognized as Safe) molecule used in grape flavoring. See the GRAS status here. R 1,3 Butanediol is also referred to as: Butylene Glycol, and is commonly used in all natural cosmetics replacing the not natural ingredient called Propylene Glycol. |