Protein Essentials products are all made using Peptan® collagen, a high-purity, natural bioactive product. Peptan® collagen peptides are type 1 collagen peptides. This means they are identical to the collagens found in human bones and skin. Peptan® is a high-purity, natural bioactive product, containing more than 97% protein. Peptan collagen peptides are optimized for high bioavailability … Continue reading How to Choose Protein? Thats Easy, Peptan Collagen is Backed By Science.