uberty

uberty in boys and girls and continue to fluctuate during a woman's menstrual cycle-cause the sebaceous glands to produce more sebum.

虽然科学家们已经指出了粉刺罪魁祸首——男霍尔蒙激，男孩和女孩的青春期开始增加，女月经周期时波动，这就致使皮脂更多的皮脂。