1、Dihydroxyacetone is a key ingredient in many self-tanning products.
二羟基丙酮是许多自我晒黑产品的关键成分。
2、When applied to the skin, dihydroxyacetone reacts with the amino acids in the outermost layer of the epidermis, turning the skin brown.
涂抹在皮肤上时，二羟基丙酮会与表皮最外层的氨基酸发生反应，使皮肤变成棕褐色。