Vitamin C serums are popular for their ability to brighten skin, reduce signs of aging, and promote an even skin tone. Here are different types of Vitamin C serums based on formulation, additional ingredients, and concentration: 1. L-Ascorbic Acid Serums (Pure Vitamin C) 2. Sodium Ascorbyl Phosphate (SAP) Serums 3. Ascorbyl Glucoside Serums 4. Ascorbyl […]