Discover Perricone MD High Potency Growth Factor Firming & Lifting Serum, a powerful day and night serum formulated with Dr. Perricone\'s next generation polyamine technology to deliver a visibly dramatic lifting effect, leaving the skin looking smooth and radiant. Supports the skin\'s moisture barrier and visibly improves skin plumpness, strength, cushion, bounce and resiliency. Key features: - Polyamine Growth Factor: Supports Healthy-Looking Skin & Youthful Radiance An endogenous molecule utilised by nearly every living thing on Earth, polyamine growth factor improves the feel of skin elasticity and helps promote the look of youthful, collagen-rich and visibly firmer skin by replenishing moisture. Skin produces smaller quantities of growth factors with age, often linked to the most visible signs of ageing like fine lines, wrinkles, loss of elasticity and uneven texture. - Eggshell Membrane: The Gatekeeper The thin, water-soluble layer that lines an eggshell, eggshell membrane supports the skin\'s moisture barrier and provides the skin with a youthful texture and radiance by improving the feel of elasticity over time. Known to protect the egg white and yolk, this thin layer is also used topically to nourish and protect the skin. - Encapsulated Retinol: Accelerated Skin Renewal A stabilised form of retinol, this ultra-powerful, non-prescription vitamin A derivative replenishes the look of thin, collagen-depleted skin by accelerating surface skin exfoliation and renewal. The microcapsules fracture when applied to the skin, facilitating a highly effective, controlled release of potent ingredients. Perricone MD is a cruelty-free brand; they do not test any of their products on animals.