Collagen is just a type of protein, and supplementing with collagen can be a great way to enhance skin elasticity as well as breast elasticity. Collagen does not cause any significant adverse effects on a woman’s menstrual period, menstrual cycle or menstrual flow, nor does it cause symptoms such as menstrual cramps. It is possible to supplement collagen during a woman’s menstrual period. When supplementing collagen, you can consider taking collagen products or eating collagen-rich foods, such as pork rinds, chicken claws, and pig’s feet. Vitamin C has the effect of promoting the synthesis of collagen, in supplementing collagen at the same time should eat more fruits rich in vitamin C.