So, what gives? Does it depend on the percentage of vitamin C included in the serum? And — why apples? According to Ron Robinson, cosmetic chemist and founder of BeautyStat, apples are particularly ...

Vitamin C is one of the most versatile and transformative products you can have in your beauty arsenal. This powerful antioxidant can decrease the appearance of dark spots, brighten and even skin tone ...

We tested the best vitamin deficiency tests from LetsGetChecked, Everlywell, and LabCorp, and our testers found them easy to use and informative. Learn more about the best vitamin deficiency tests ...

8 best vitamin C serums, tested by a beauty editor - Brighten your skin and soothe redness with elixirs from Olay, Kiehl’s and Boots ...

Topical vitamin C and retinol both provide anti-aging benefits to your skin, and combining them may compound their effects, ...

We may earn commission from links on this page, but we only recommend products we love. Promise. Ready for a short story? I thought I was doomed to have dull, zombie-looking skin until I discovered my ...

Vitamin C has been crowned the ultimate immune-boosting, anti-aging wonder vitamin, leading millions of people to megadose on supplements while slathering high-concentration serums on their faces ...