"Vitamin C is a powerful antioxidant that comes from natural sources and is often produced synthetically in various skincare products. This ingredient protects the skin from collagen damage and neutralizes damage caused by free radicals. "Vitamin C can help reduce the appearance of dark spots and hyperpigmentation. This is because vitamin C lowers the regulation of an enzyme called tyrosinase that is involved in melanin production," says Purvisha Patel, MD, a dermatologist."

This is because of several factors, such as the outer layer of the skin, called the stratum corneum, naturally resistant to water-soluble molecules like vitamin C. "Therefore, products must be able to penetrate the outer layer of the skin for vitamin C to be effective," says Patel. He specifically recommends using a serum that contains vitamin C. For those of you with sensitive skin, look for a serum that is safe for the skin and try it on your skin first.

Apply to the face twice a day. "This combination is safe and can be adjusted depending on the cause of black spots," said Patel. There are several ingredients that should also be avoided when using vitamin C. Patel said it is best to avoid using vitamin C with certain skin exfoliating ingredients and acids, such as retinol and alpha hydroxy acids. Report by Aykaputri Amalia Rahmani/ Source: Byrdie.