All categories
Vitamin C
Vitamin C and antioxidants
L-ascorbic acid, ferulic acid, vitamin E — antioxidant pairings that boost photoprotection and the ones that cancel each other out.
Vitamin C is the most-researched antioxidant in skincare. It works synergistically with sunscreen but is famously finicky about pH, oxidation, and metal-ion exposure. Here's what actually matters at home.
Ingredients in this category
Hydroquinone
Rx-only potent melanin inhibitor; FDA regulated.
Tocopherol
Vitamin E antioxidant. Protects oils in formulas from oxidation and supports skin barrier repair. Photo-stability can be affected when layered with topical retinoids.
Vitamin C
Antioxidant that brightens and supports collagen synthesis.
Check your routine against your meds.
BlendSafe checks 3+ vitamin c ingredients against your medication list in seconds.