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Note: For complete details, please review product monographs at and regularly review current Health Canada advisories, warnings and recalls at: for the most up to date information.) Table 4: Treatment of B 12 deficiency (adapted from Means 2021) 27 Note: Intranasal administration is generally not used

Reviewed by the PeptideMind Team Updated July 15, 2026 AHK-Cu Dosage Guide, Benefits & Side Effects AHK-Cu is a copper tripeptide studied for hair follicle growth, collagen production, and skin firmness

Results require patience, as hair growth cycles span months

However, the side effects are mostly mild

Over time, patients often see brighter skin, stronger nails, and less hair thinning