Have been using for 5 months and will continue to do so.” — Kindle customer This serum has an very high 20% concentration of vitamin C, plus mild fruit AHAs to act as gentle exfoliators and Japanese ...

With 15 per cent vitamin C – stemming from 3-O-ethyl ascorbic acid – and five per cent polyhydroxy acids (PHA’s) stemming from fruit acids, this serum works to instantly brighten and boost skin for a ...

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%. Below, they share their favorite formulas ...

Vitamin C is a crucial antioxidant in skincare, recognized for brightening skin, protecting against environmental damage, ...

It helps protect delicate skin from the sun while battling fine lines and dark spots, fans say — wins all around.

Firstly, the concentration of vitamin C in the serum is crucial. A concentration of 10-20% is generally considered to be effective. The type of vitamin C used in the serum is also essential ...

Calamansi, the tiny citrus fruit, is the beauty industry's new darling, thanks to its vitamin C powerhouse properties. This ...