is ghk cu better topically or injected

BPC-157 Rapid | 60 count | InfiniWell — Blue Sky Vitamin https://bioplexpeptides.co.uk/cdn/shop/files/FOXO410mg-20x40mm-100326.png?v=1776703914&width=345 Size:50mL - unscented Suitable For_Breastfeeding Our advanced GHK‑Cu face and neck serum by Neurogan Health delivers 1200 mg 4% of Copper Tripeptide‑1 to help improve the appearance of tone, texture, and hydration for a smoother, more radiant look

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