What is the safety of "kojic acid"?
"kojic acid" works well, but why was it banned later ? It is well known that kojic acid is also widely used in the food industry.But early extraction techniques is not OK. In Japan, some low-grade Kojic Acid containing unknown impurities will make shrimp and squid seeds black, and people are beginning to doubt the safety of kojic acid.
kojic acid is not an acute, chronic, reproductive toxicity substance, although some animal data suggest that tumor promotion and weak carcinogenicity, but kojic acid is very slow to absorb from the human skin to the circulation, it is likely to reach the threshold of these effects. . Kojic acid is safe in concentrations below 2% in cosmetics.