Dr. Shirazi specifically recommends this serum for oily, sensitive skin. “It’s formulated with a 20% vitamin C complex—L-ascorbic acid and tetrahexyldecyl ascorbate—that visibly reduces ...

SkinCeuticals Vitamin C E Ferulic Serum All of our experts recommend Skinceuticals CE Ferulic, a serum containing 15% L-ascorbic acid ... vitamin C between 10% and 20%. “Beyond 20%, it ...

“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.

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.

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 ...