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Some may benefit from twice-weekly dosing depending on: Dosing is individualized after medical evaluation
By the Premium UK Peptides Research Team Updated July 2026 8 min read GHK-Cu is a naturally occurring copper-binding tripeptide glycine, histidine, and lysine, bound to a copper (II) ion that the body already produces and circulates in plasma, saliva, and urine
For a 5mg dose, you now need 5 16.67 = 0.3mL (30 units) instead of 20 units
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