Vitamin C Serum: This Brightening Serum Supports Collagen Health, Improving The Appearance Of Sun Damaged Skin The Natural Serum Diminishes The Appearance Of Fine Lines, Wrinkles And Uneven Skin Tone Looking For A Vitamin C Serum That Really Works Our Concentrated Vitamin C Face Serum Is Dermatologist Recommended And Clinically Proven To Beautifully Brighten The Appearance Of Your Skin. Formulated With A Stabilized Form Of Vitamin C, Stay C-50®, This Serum Is More Effective Than Non-Stabilized Forms Of Vitamin C Which Can Easily Degrade And Lose Potency, Diminishing Their Benefits Even Before Applying