When it comes to achieving bright, glowing skin, a vitamin C serum is key. But not all vitamin C serums are created equal—and ...

SkinCeuticals Vitamin C E Ferulic Serum All of our experts recommend Skinceuticals CE Ferulic, a serum containing 15% ...

Less than that and you don’t get the full benefit of the product, and over 20 percent ... active ingredient is L-ascorbic acid (it comprises 15 percent of this serum), and despite the high ...

look for a product that says “ascorbic acid” or “L-ascorbic acid” that has a concentration between 10-20% and is in a dark or tinted glass. Vitamin C is an unstable molecule and can easily ...

To get the antioxidant benefits of vitamin C in your skin care routine, experts recommend looking for a serum with a concentration between 10% and 20% ... 15% L-ascorbic acid.

“Vitamin C – otherwise known as L-ascorbic acid – is notoriously unstable ... you can release it into the serum, give it a shake and it’s ready to go.

Ideal for normal and oilier skin types, the ESK C Serum Lite contains vitamin C in its most potent form – L-Ascorbic Acid, 10 per cent – to repair and prevent the appearance of ageing ...