Vitamin C, also known as ascorbic acid, is a powerful antioxidant essential for immune system support, collagen production, and wound healing. It helps protect cells from oxidative stress, improves iron absorption from plant-based foods, and promotes healthy skin, teeth, and blood vessels. Found naturally in citrus fruits, berries, peppers, and leafy greens, vitamin C is water-soluble, meaning the body doesn’t store it, so regular intake is necessary. Supplementation may be beneficial during illness, stress, or when dietary intake is insufficient, often available as tablets, powders, or gummies for convenient daily use.