Collagen can tighten skin, smooth wrinkles, improve relaxation, tighten skin and reduce deep wrinkles. It can also repair damaged tissues, shrink pores and make skin delicate. Anyway, it's good. My friend introduced me to use collagen from Thailand Chimeitang Colly Pink. I saw it took her a long time to start using it. The effect is indeed there. Sensory function is more than just caring for the skin. Hehe, it can't be wrong to use. I'm really happy.