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It is produced within the body and found in high concentrations in several tissues

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For formulators, this creates opportunities to differentiate products based on genuine functional advantages rather than marketing claims alone

Few studies exist evaluating GHK-Cu for alopecia and so specific studies on effective concentration for this indication are unavailable, anecdotally some compounders use 0.2-3%

Vitamin C does the hard part, but it is Glutathione that makes sure it continues to work without burning out

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