ghk-cu copper peptide hair regrowth evidence studies PDF) The effect of tripeptide-copper complex on human growth in vitro GHK-Cu for Hair Growth: Before

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In some embodiments, the otic formulation or composition comprises about 0.3% by weight of the povidone

Thorax 2006;61:491495

4 This trend shows no sign of slowing down

That doesnt mean its wrong the chemistry is reasonable but it does mean the 100x more potent claims you see in promotional copy are essentially marketing language layered on top of plausible but unverified pharmacokinetic logic