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Can I use GHK-Cu topically and by injection at the same time
Description Specifications Description Naturally occurring neuropeptide first identified in the 1970s, studied for promoting delta-wave (deep, slow-wave) sleep without the sedation of typical sleep medications, and for dampening HPA-axis stress signaling (reducing ACTH/cortisol)
For cell-based systemic regeneration, it is the better-characterized tool [7](#ref-7)[8](#ref-8)
U., & Isaacs, J
The needle should enter smoothly
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