Type 2 collagen is found in cartilage, while type 3 collagen is found in skin, muscles, and blood vessels. Type 5 collagen is found in hair and nails, while type 10 collagen is found in cartilage ...
Type-I collagen gives skin shape and strength ... At this age, skin begins to lose thickness and strength at a rate of around 1.5 percent a year, according to consultant dermatologist and author ...