ZealSea Vitamin C Serum Brightening Skin 30 ml Anti-Wrinkle Product Description: ZealSea Vitamin C Serum is an advanced care cosmetic that combines effectiveness, safety and comfort of use. It contains as much as 15% pure L-ascorbic acid, which acts directly on the skin, without the need for transformation – thanks to which it is absorbed faster and more effective than traditional vitamin C derivatives.