Collagen tripeptide(CTP)is the smallest structural unit that of collagen that prepared by advanced bioengineering technology, it is tripeptide contains glycine, proline (or hydroxyproline) and one other amino acid. In other words, collagen tripeptide is actually the use of advanced bioengineering technology to intercept small molecular structures in large collagen molecules that are useful to the skin. Its structure can be simply shown in Gly-x-y, and its average molecular weight is 280 dalton. It can fully absorbed by human body for its small molecular weight. What’re more, it can also effectively penetrate into stratum corneum, dermis and hair root cells.

Collagen tripeptide has small molecular weight, compared with the basic structure of skin collagen, it can directly absorbed by human body without any decomposition, its absorption rate is more than 99%, and 36 times of normal collagen.