A daily 
vitamin C antioxidant serum 
is essential for protecting the skin from 
environmental aggressors 
beyond the UV rays that sunscreens intercept. The first step when shopping for vitamin C serums is ensuring the formula meets three specific criteria. First, the product must be formulated with pure vitamin C (l-ascorbic acid). Second, vitamin C must be at an ideal concentration of 10-20%. Lastly, vitamin C serums must be formulated at an acidic pH equal to or lower than 3.5 for maximum absorption into the skin.
SkinCeuticals offers vitamin C serums for a variety
of skin concerns and skin types. 
C E Ferulic 
is formulated to combat fine lines and wrinkles and
is also ideal for normal-to-dry skin. 
Phloretin CF 
beyond the UV rays that sunscreens intercept. The first step when shopping for vitamin C serums is ensuring the formula meets three specific criteria. First, the product must be formulated with pure vitamin C (l-ascorbic acid). Second, vitamin C must be at an ideal concentration of 10-20%. Lastly, vitamin C serums must be formulated at an acidic pH equal to or lower than 3.5 for maximum absorption into the skin. 
Serum 10 
is ideal for first-time users and those with sensitive skin. A 
SkinCeuticals skincare professional. 
can recommend the best vitamin C serum for your unique skin type and concern.