n.视黄醇；维生素A；松香油
Changes seen with retinol therapy included an increase in glycosaminoglycan and procollagen in biopsy samples. 使用视黄醇治疗的皮肤活检标本变化检测，包括粘多糖及胶原的增加。
And doctors really believe that retinol is one of the best ways to reverse some of the damage. 医生们确实认为视黄醇是治疗一些损伤的最好的方法之一。
