Peter Thomas Roth Peptide 21 Wrinkle Resist Serum by Peter Thomas Roth for Unisex 1 oz Serum Size:1 oz refines skin texture & boosts 261554 refines skin texture & boosts Hyaluronic Acid levels Reduces the appearance of fine lines & wrinkles Blended with Reishi Mushroom Extract to provide maximum below the surface hydration Enhanced with Peptide 3 active to stimulate Collagen Type IV & Collagen Type I production Boosts Elastin levels to provide visible structure & firmness while preventing sagging skin Keeps skin softer non sticky texture that penetrates into skin immediately Boasts a sweatproof & waterproof formula for long lasting protection Contains patented Mexoryl® SX & XL filters to protect skin against UVB & UVA rays Blended with Life planktonTM to hydrate skin for twelve hours Provides soothing & anti wrinkle benefits Leaves skin firm Infuse the skin with a youthful glow while reducing the signs of fine lines and wrinkles with this serum This formula is suitable for all skin types and helps improve skin elasticity and radiance to even the skin texture and tone