Peter Thomas Roth Peptide 21 Wrinkle Resist Serum by Peter Thomas Roth for Unisex 1 oz Serum Size:1 oz refines skin texture & boosts 227374 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 lighted mirror with 15 times magnifying capacity Optically correct with no distortion & crystal clear from edge to edge Lighted around the entire perimeter for complete clarity Perfect for tweezing 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