The Ordinary Ethylated Ascorbic Acid 15% Solution is a stable, direct-acting form of Vitamin C designed to brighten skin tone and reduce signs of aging. This highly concentrated formula delivers potent antioxidant benefits while remaining exceptionally stable compared to traditional Vitamin C derivatives. Key features: • 15% concentration of ethylated ascorbic acid • Exceptionally stable Vitamin C formula • Direct-acting antioxidant benefits • Helps brighten skin tone • Reduces signs of aging • 30ml amber glass bottle with dropper This solution uses ethylated ascorbic acid, which is a more stable derivative of Vitamin C that maintains its efficacy over time. The amber glass bottle helps protect the formula from light degradation. For best results, apply a few drops to clean skin in the morning or evening before heavier treatments. Can be used daily but should be introduced gradually into skincare routine. Store in a cool, dark place to maintain stability.