Finally: the brightening power of Vitamin C and the correcting power of Retinol come together in one supercharged, lightweight serum. Two potent forms of stabilized Vitamin C plus Acerola Cherry Extract (a superfruit highly concentrated in Vitamin C) visibly brighten, firm, and restore radiance. Retinol boosted by NIA-114™ (our proprietary form of Niacin) smooths fine lines and texture for visibly renewed, glowing skin.Cruelty-Free, Suitable for All Skin Types   Benefits: Restores radiance and clarity to dull, tired skin Smooths away fine lines and uneven texture Visibly firms and improves elasticity Proven results: 97% showed improvement in skin brightness* 100% showed measured improvement in skin firmness** 100% showed no irritation to skin*** *Based on expert grading evaluation on 35 subjects at 6 weeks **Based on instrumental testing on 35 subjects at 6 weeks    ***Based on tolerability study on 35 subjects at 12 weeks How To Use  Shake well. Apply 1 to 3 drops to clean face in the morning and evening. Follow with moisturizer.