Just Ingredients’ Methylated B Complex with Liver Support is made with bioavailable B vitamins, NAC (N-acetylcysteine), and key nutrients to support liver function and the body’s natural liver detoxification processes. It includes methylated B vitamins—B12, B6, riboflavin, and folate—designed for optimal absorption, along with NAC, an amino acid that supports the body’s production of glutathione. Formulated with quality in mind and third-party tested.