DENSIFYING silk serum from POSTQUAM . Premature anti-aging serum with silk proteins. Say goodbye to your wrinkles and hello to deeper hydration! DENSIFYING silk serum is a densifying serum, rich in silk proteins and cytokines, that fights premature aging, stimulates the original functions of facial cells and balances levels of hydration, dryness and nutrition. As a result, the face acquires silky characteristics: softness, elasticity and shine. The spots and wrinkles visibly decrease. For all skin types, even very sensitive and cuperosic.