L Ascorbic Acid
Description
Antioxidant; ROS scavenger; vitamin E regenerator; melanogenesis inhibitor; collagen synthesis stimulator; anti-pollution active; HEV-induced ROS quencher
Function
Properties
Regulatory Status
CIR safe as used twice (2005 L-AA group and 2022 ethers/esters update). US GRAS food and unrestricted cosmetic. EU unrestricted - not restricted by EU 2024/996. pH below 3.5 critical for L-AA stability. Pro-oxidant risk with Cu2+ and Fe3+ metal ions. Oxidation visible as colorless to yellow to brown. NTP 2-year study showed no carcinogenicity. Non-sensitizing with negative RIPT. Five derivatives have superior stability. COSMOS approved for natural and fermentation sources.
GRAS for food (preservative, nutrient). Not restricted in cosmetics under MoCRA. No OTC monograph listing.
Ratings
Identifiers
No registry identifiers available for this ingredient.