What it is: Niacinamide, also known as vitamin B3, is a water-soluble vitamin that helps strengthen the skin barrier, ...

For those of us who want the best, strongest and most effective ingredients, retinol is an absolute must. And while you can ...

With the addition of ceramides, caffeine, vitamin C, and hyaluronic acid, these retinol-powered formulas can help smooth fine ...

Thousands of Amazon shoppers and a PEOPLE editor’s 56-year-old mom swear by the $35 Vichy Vitamin C Serum. This serum ...

This is why I was so eager to try L’Oréal’s Cell BioPrint.

The benefits of retinol extend beyond mere wrinkle reduction. It also brightens the under-eye area, evens out skin tone, and ...

From bakuchiol to azelaic acid, here’s how alternative ingredients to traditional retinoids stack up to the anti-ageing ...

A vitamin C serum is an essential product to have in your skincare arsenal, and we found one for 50% off on Amazon.