SkinCeuticals P-TIOX Wrinkle Modulating Peptide Serum. Bottle is open, approximately 10 drops used. Helps reduce nine types of contraction lines and promotes glass skin radiance. Inspired by the effects of neurotoxin injections, this serum is formulated with an Advanced Peptide Complex and a Glass Skin Complex to smooth nine types of contraction and expression lines to rejuvenate skin for a renewed glow. Neurotoxin injections are a popular in-office treatment used to treat expression wrinkles caused by muscle contractions. When paired together, P-TIOX and neurotoxin injections work synergistically to help reduce the appearance of wrinkles, delivering fast, long-lasting results. Versatile and innovative, this serum is also effective on its own to smooth skin, refine pores and reveal glass skin radiance in one week of use. Improves skin smoothness, refines the look of pores and reveals glass skin radiance in one week Visibly reduces fine lines in one week Visibly reduces nine types of contraction lines, even those hard to treat with neurotoxin injections after 12 weeks Visibly reduces global fine lines by 20.6% in 12 weeks Advanced Peptide Complex, comprised of 2% hexapeptide and 2% dipeptide, works together in synergy to fight against contraction lines 5% PHA, 5% niacinamide, and 1% laminaria extract maximize hydration while gently exfoliating to visibly improve skin texture and radiance Tested on all skin tones and types. Hydrates skin up to 24 hours after application.