Synthetic vitamin C, also known as ascorbic acid, is chemically identical to the vitamin C found in natural sources like fruits and vegetables. However, synthetic vitamin C is produced in a laboratory setting, whereas natural vitamin C is derived from plant-based sources such as citrus fruits, berries, and leafy greens. While both forms offer similar benefits when consumed orally, natural vitamin C may contain additional nutrients and phytochemicals that can enhance its absorption and effectiveness. In skincare products, natural vitamin C may also be more stable and less likely to cause irritation compared to synthetic versions.