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No official human dosing guidelines exist as GHK-Cu is not FDA-approved
Glutathione (GSH) 4 fl oz (120 mL) Works as an intra-cellular antioxidant & supports liver function.* SKU: 130943 Serving Size: 5 mL (1 teaspoon) Servings Per Container: 24 Active Ingredients (Reduced) GSH L-Glutathione, 500 mg ** Phosphatidylcholine (Soy), 160 mg ** **Percent Daily Value (DV) Not Established Other Ingredients Vegetable glycerin, organic cane alcohol (10%), natural orange oil, tocopherol (Vitamin E), Green tea (leaf) extract (Camellia sinensis), Cocos nucifera (coconut) oil
Heres how the three options compare: A 2025 study published in Pharmaceutics noted that standard oral Glutathione has bioavailability challenges due to digestive breakdown and absorption barriers, which is why delivery methods that bypass the digestive system are often preferred
Quality and Standardization Purity Testing : Our reduced glutathione capsules undergo comprehensive lab testing and verification for both product purity and identity, ensuring you receive exactly what's on the label
The container requires no vapor barrier to maintain the proper labeled volume. 
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