Vitamin C itself is always vegan; the rest of the bottle is where formulas fail the check. Here is which form of vitamin C suits your skin, how to verify the label, and the rules that keep the serum working.

Hydrating, brightening or renewing? The right vegan serum depends on the job you need done. This guide matches each serum type to a routine goal, shows when to apply it, and explains how to layer serums without irritation.