ahk cu vs ghk cu AHK-Cu. Copper Tripeptide-3. Specifically engineered for hair follicles. Three months ago we were ordering this in 2 gram quantities. We made our first batches of AHK-Cu Scalp Serum and sold out within Specifically prized in hair research for its ability to target the hair follicles and support the growth phase (Anagen) What's the difference between AHK
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