Achieve your most radiant, glass-like complexion with SkinCeuticals Anti-Wrinkle Duo: C E Ferulic & P-TIOX. This potent duo combines the antioxidant protection of C E Ferulic with the line-smoothing power of P-TIOX to visibly refine texture, even tone, and deliver a youthful glow. Our bestselling vitamin C serum, C E Ferulic, features a synergistic antioxidant combination of ferulic acid and pure vitamins C and E. This patented daytime vitamin C serum delivers advanced environmental protection and improves the appearance of fine lines and wrinkles, loss of firmness, and brightens skin's complexion. P-TIOX is a peptide-powered serum clinically proven to reduce the appearance of 9 types of expression lines and reveal glass skin radiance. Inspired by the effects of neurotoxin injections, P-TIOX features a patent-pending blend of advanced peptides amplified by synergistic actives (PHA, Niacinamide, and Laminaria Extract) to visibly reduce wrinkles, improve skin texture and radiance, and complement the results of professional injectables. Key Benefits: C E Ferulic Provides advanced environmental protection from skin-damaging free radicals caused by sun and pollution Improves the appearance of fine lines, wrinkles and loss of firmness Neutralizes free radicals on the upper layer of the skin to help prevent the impact of ozone damage to skin Paraben-free and ideal for normal, dry, and sensitive skin types P-TIOX Reduces the appearance of 9 types of expression lines, even those neurotoxin injections do not treat. Reveals glass skin radiance in 1 week of use. Hydrates skin up to 24 hours after application Improves skin barrier with 1 application Physician-tested to complement neurotoxin injections. Suitable for all skin types and tones. Key Ingredients: CE Ferulic 15% Pure Vitamin C (L-Ascorbic Acid): provides visible anti-aging benefits and helps protect against oxidative stress 1% Vitamin E (Alpha Tocopherol): this pure form of vitamin E neutralizes free radicals and replenishes skin lipids 0.5% Ferulic Acid: a plant-based antioxidant, ferulic acid neutralizes free radicals and enhances the antioxidant benefits and stability of vitamins C and E P-TIOX Advanced Peptide Complex (2% Hexapeptide + 2% Dipeptide): Known to help reduce the appearance of contraction lines. 5% PHA: A gentle chemical exfoliant to help improve skin texture and enhance skin radiance. 5% Niacinamide: Strengthens the skin's moisture barrier and reduces the appearance of discoloration. 1% Laminaria Extract: Known to hydrate, soothe skin, and improve wrinkle correction.