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Researchers isolated a specific fragment and created a stable, synthetic version

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These knowledge gaps are not reasons to dismiss the research

Pros: Two active peptides targeted for hair (GHK-Cu and Acetyl Tetrapeptide-3) No minoxidil side effects like scalp irritation or unwanted facial hair Only 5 ingredients at clinical concentrations Works for all hair types 2-3 drops on scalp, massage 30 seconds, done Cons: Results typically take 6-8 weeks of consistent daily use Designed for hair only (not a face or skin product) Smaller review sample than mainstream hair care brands See the full details on this copper peptides hair serum and find out if it's right for you