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Your liver produces it naturally, but levels can drop due to age, environmental factors, and daily stress
Typically, if stored correctly in a freezer (around -20C or -4F), an unopened GHK-Cu vial can maintain its integrity for 1-2 years, sometimes even longer, depending on specific batch characteristics
As a result, it takes a full 3 months for all the older, malformed red blood cells to be fully replaced by newly formed, healthy ones
One six-month, randomized, double-blinded, placebo-controlled trial found that taking oral glutathione at either 250 or 1,000 mg/day led to significant increases in the body stores of glutathione in a dose-dependent manner
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