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Description
A study published in the European Journal of Clinical Nutrition highlighted the superior bioavailability of IV-administered glutathione compared to its oral counterpart

My customized IV formula contained: 600mg glutathione (the master antioxidant) 1,500mg vitamin C (boosts glutathione absorption) 500ml saline solution (for proper hydration and delivery) Glutathione and vitamin C worked together in a mutually beneficial way vitamin C helps regenerate glutathione while making its skin-brightening effects stronger

That does not mean they are illegal, unregulated, or unsafe

10.1253/circj.cj-17-1058 Circ