Did you know that not all vitamins work the same way in your body? Water soluble vitamins (like Vitamin C and B complex) Dissolve in water Aren't stored long term in Recommended food enriched with antioxidant (Vitamin C) for alleviation Download Scientific Diagram How Vitamins Are Classified and In The Body Vitamins regulate metabolism and energy by acting as enzyme cofactors. They're classified as fat soluble (A, D, E, K) or water soluble (B complex, C), affecting how Think you know Vitamin C? Let's bust some myths: from layering with retinol to hitting the right potency, here's why THD Ascorbate makes brightening smarter and gentler.