When prepared as a dietary supplement, retinol is stabilized as the ester derivatives retinyl acetate or retinyl palmitate.
当制成膳食补充剂时，视黄醇稳定为乙酸视黄酯或棕榈酸视黄酯的酯衍生物。
2
For example, putting on a moisturizer before applying a sunscreen or aretinol cream can keep the active ingredient from soaking in.
举例来说，先擦保湿霜，然后再应用防晒霜或精纯维他命，这样可以防止活性成分渗入皮肤。
3
Supplements made from the liver of the fish, such as cod liver oil, contain the retinol form of vitamin a and need to be avoided altogether during pregnancy.