Who: for all skin types. What: serum to help provide firmer skin, intensive hydration, stimulate cell renewal and improve the appearance of skin tone. How: with a concentrated CMN-1 native collagen serum to offer hydrating and tightening action by increasing skin elasticity. Marine collagen effectively binds water to provide optimal hydration. Collagen is a water-insoluble protein, which is the building material of skin and represents 70% of its composition..The collagen present in our metabolism is strengthened to provide tightening and give tissue increased resilience.