BioSerum Firm - Retail $275. the only Human Growth Factors + Proprietary Peptides anti-aging formulation with proven results in less than a week. Minimize the appearance of fine lines and wrinkles, refines texture, brightens skin tone, improves firmness and elasticity, and boosts hydration as soon as 6 days. Supports Collagen and Elastin production. Improves firmness, elasticity, tone, and texture. Diminishes the appearance of fine lines and wrinkles. Increases skin hydration for enhanced skin smoothness and luminosity. 30ml.