But vitamin C is one of those actually necessary ingredients ... SkinCeuticals C E Ferulic was explained to me, as a young beauty editor, as liquid gold. The one product you forsook all others ...

Discover how this vitamin c serum helped fade stubborn acne scars and hyperpigmentation in just 4 weeks, plus expert tips for ...

Medically reviewed by Kristie Reed, PharmD Vitamin C is a popular antioxidant, known largely for its immune health benefits.