Collagen Redux Serum with Activated Silk® 27P-α - 12 Pack12 Pack Made with the same Activated Silk 27P peptides as Gen Collagen, but formulated into a take home serum to apply additional peptides post treatment. This twice daily serum visibly improves fine lines, elasticity and firmness. And unlike ingredients like retinol, Activated Silk 27P is gentle and non irritating on skin, even with UV exposure. This lightweight serum can be applied after cleansing and layered with your other products.