Of all the vitamin-C options, our experts generally recommend looking for serums that contain ascorbic acid, also known as L-ascorbic acid, which is the most active and purest form of vitamin C.

We already know Korean skincare is a few notches above what we have in America. They're ahead of us in terms of what's ...

With 15 per cent vitamin C – stemming from 3-O-ethyl ascorbic acid – and five per cent polyhydroxy acids (PHA’s) stemming ...

Vitamin C is a powerful ingredient for skincare especially in winter Learn how it can brighten hydrate and protect your skin ...

Sure, that's great and all—but if you're a beginner to vitamin C or have sensitive skin, you need something much gentler. Enter: This lighter option from CosRX, which not only opts for a 13 percent ...

it’s important to choose a product that contains a stable form of vitamin C, such as L-ascorbic acid or ascorbyl palmitate. These forms of vitamin C are more effective and have a longer shelf ...

The best vitamin C serums are designed to effectively moisturize, brighten and even skin tone. Here are our expert-approved picks.

Containing a high-strength, oil-solubilised vitamin C derivative that can be used in higher concentrations than pure L-ascorbic acid without drawbacks, it’s combined with vitamin F (fatty acids ...