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 ...

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

Finding the best vitamin c serum isn't always easy, so we hit up the UK's top Dermatologists and beauty experts, to find out exactly what works.

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 ...

New York Post may be compensated and/or receive an affiliate commission if you click or buy through our links. Featured pricing is subject to change. If you ask virtually any dermatologist or skin ...

"It has hyaluronic acid, so it hydrates the skin and just leaves my skin feeling supple and soft. I've been using it for ...