da Vinci 21 is a professional use anti-aging serum containing 5 different growth factors specifically engineered in Korea for anti-aging and skin rejuvenation. It contains 21,000 ng/ml of growth factors. These growth factors are individually designed and formulated to firm, contour, & brighten the look of skin. This powerful anti-aging formula helps stimulate natural cell activity to help restore the appearance of skin’s elasticity, resilience, tone, and texture. da Vinci 21 requires micro needling to ensure the large and powerful protein molecules are penetrating the lower layers of skin beneath the epidermis.