L‑glutathione is a key intracellular antioxidant that helps neutralise free radicals and supports detoxification and skin-brightening pathways by modulating melanin production. Alpha lipoic acid participates in energy metabolism and also regenerates other antioxidants like glutathione and vitamins C and E, thereby strengthening overall antioxidant defence. Vitamin C supports collagen formation, immune function, and regeneration of oxidised glutathione, enhancing the synergistic antioxidant effect of this combination and contributing to skin radiance and general wellbeing.