Top 5 Vitamin C Serums to Keep Your 20-Year-Old Skin Glowing and Youthful Ulta Beauty References › Glowing › Serums › Vitamin › YearOld › Youthful Admin July 18, 2024 Looking for the best vitamin C serum for 20 year olds? Discover our top picks that will help brighten, hydrate, and protect your skin.