Collagen is a kind of biological macromolecule material, is a kind of white, not transparent, no branched chain of fibrous proteins. It can supplement the nutrition for the skin layers. The MIYO 1800 fish collagen is transparent and has no color when it is dissolved in water.External use: Fish Collagen Peptide can complement collagen protein to skin by means of pore osmosis, improve skin impression and tactility, smooth out wrinkles.