How collagen and keratin protect your skin, hair, and nails during weight loss

https://www.bookmarkzoo.win/how-to-improve-skin-elasticity-and-prevent-loose-skin-during-weight-loss-answers-to-the-questions-that-matter

When you lose weight, most people expect to see a smaller waist or looser-fitting clothes. What you may not plan for is the way your skin, hair, and nails respond