TARTARIC ACID

Chemical name

Alpha-hydroxy acids, including polyhydroxy acids and bionic acids with alpha hydroxyl groups, and their salts

CAS

79-33-4

Max concentration

a) Between 3% and 18% total mono-AHA equivalents with a pH equal to or greater than 3.5 b) Between 18% and 30% total mono-AHA equivalents and/or a pH between 3.0 to 3.5 d) Between 3% and 30% total mono-AHA equivalents with a pH equal to or greater than 3.0 3%

Conditions of use

a) Products for use on the skin for consumer use Manufacturer or importer to provide pH levels b) Products for use on the skin for professional use Manufacturer or importer to provide evidence of safety, including: pH levels AHA concentrations directions for use clinical studies demonstrating minimal skin irritation c) Products intended to be diluted in bath water may contain levels of AHAs exceeding 10% d) Other cosmetics e) Any cosmetics | Warning: a) and b) "Use only as directed" "Avoid contact with the eyes" "If irritation persists, discontinue use and consult a physician" "It is recommended that prior to exposure to the sun, users cover areas where AHAs have been applied with sunscreen" Product labels should contain appropriate directions regarding frequency and/or duration of use b only) "For professional use only" d) "Use only as directed" "Avoid contact with eyes" "Discontinue use if rash or irritation occurs"

Source: Health Canada Cosmetic Ingredient Hotlist