Vitamin C regenerates oxidized vitamin E, creating an antioxidant recycling loop that extends photoprotection duration. Well-established in dermatological literature.
Ferulic acid stabilizes vitamin E and enhances its antioxidant activity. Part of the well-known C+E+Ferulic synergistic trio.
Resveratrol and vitamin E provide complementary antioxidant protection through different radical-scavenging mechanisms.
CoQ10 and vitamin E synergize as lipid-phase antioxidants. CoQ10 can regenerate oxidized vitamin E in cell membranes.
Astaxanthin and vitamin E provide complementary lipid peroxidation protection. Astaxanthin is one of the most potent natural antioxidants.
Vitamin E stabilizes retinol in formulations and reduces retinol-induced oxidative stress on the skin.
BP oxidizes vitamin E on contact, neutralizing its antioxidant activity.