why does ghk cu injections hurt Mitigating GHK-Cu Injection Pain: Tips and Tricks | Gabriel Alizaidy, MD, MS posted on the topic GHK-CU - Beverly Hills Rejuvenation

It is also not recommended for use in patients suffering from severe Leber hereditary optic neuropathy (inherited form of vision loss), and/or runny nose/nasal blockage

It is never dosed daily

This is the operational backbone of the documentation chain described above

Copper Peptides for Hair Growth and Hair Loss: Complete Topical Guide Copper peptides such as GHK-Cu can be used in a topical scalp routine for thinning hair, hair density and hair growth support, but current evidence does not prove that a cosmetic GHK-Cu serum regrows hair or treats a diagnosed cause of hair loss

Usually within aprox 2 hours of falling asleep sometimes 3, 2 or even 1

Pharmacology Biochemistry and Behavior, 77 (2), 399-404