an alpha-hydroxy acid (= a type of organic acid) that is used in some products intended to make the skin healthy and attractive

The skin peel kit uses 8 percent glycolic acid. 皮肤剥离试剂盒使用8%的α-羟基酸。

Lactic and glycolic acids are naturally occurring alpha hydroxy acids - AHAs. 乳酸和乙醇酸是天然存在的 α-羟基酸。