Tag: Oxidized serum

Vitamin C is a notoriously unstable active ingredient, with its efficacy diminishing upon exposure to air, light, and heat. Learning how to tell if vitamin C has oxidized is essential for ensuring your skincare product is still potent and providing the benefits you expect.

Over recent years, vitamin C has become a cornerstone of many skincare routines due to its powerful antioxidant properties. Despite its popularity, the rumor persists among some: will vitamin C make you pale? This article clarifies the scientific facts, explaining that this ingredient does not alter your natural skin tone but instead effectively addresses discoloration.