n.視黃醇；維生素A；松香油

Changes seen with retinol therapy included an increase in glycosaminoglycan and procollagen in biopsy samples. 使用視黃醇治療的皮膚活檢標(biāo)本變化檢測(cè)，包括粘多糖及膠原的增加。

And doctors really believe that retinol is one of the best ways to reverse some of the damage. 醫(yī)生們確實(shí)認(rèn)為視黃醇是治療一些損傷的最好的方法之一。