Vitamin C Serum at Night: 4 Benefits, Uses & Routine
Using vitamin C serum at night is one easy way to add an antioxidant and brightening ingredient to your skincare routine. Vitamin C, especially L-ascorbic acid, has been studied for its antioxidant activity, role in collagen production, and potential to improve the appearance of uneven pigmentation and signs of photoaging. Although vitamin C is often…