Check the label for L-ascorbic acid, which is considered to be the vitamin C best for skin. (Even better: If it contains 15 to 20 percent L-ascorbic acid, ...

Great To Know Activating the package releases the pure Vitamin into the vial's de-aging soothing emulsion, which is bursting with powerful revitalizing ...

* Simply mix a few pumps with your favorite Clinique moisturizer- Vitamin C in the morning, Vitamin A at night . ... To Use: Shake before use. ...