Your collagen and pro-exosome concentrate to boost firmness With 5% collagen and the Pro-Exo Protein System™, an advanced pro-exosome blend of tiny skin messengers, this firming serum targets loss of elasticity, density, and suppleness. Show off skin that feels more flexible, lifted, and revitalized. You’ll love this ultra-concentrated formula designed to help reduce signs of aging and support your skin as the hormonal changes of peri- and menopause accelerate collagen loss and wrinkles. | Natura Bissé Essential Shock (R)Evolution Pro-Exo Collagen Matrix, 1 oz | Dermstore