collagen

1. N-UNCOUNT Collagen is a protein that is found in the bodies of people and animals. It is often used as an ingredient in cosmetics or is injected into the face in cosmetic surgery, in order to make the skin look younger. (美容用的)膠原蛋白

The collagen that is included in face creams comes from animal skin. 麪霜中包含的膠原蛋白來自於動物皮膚。

...collagen injections. ...膠原蛋白注射物。