Neurogan GHK-Cu + AHK-Cu Hair Serum Pro - Lightweight Scalp Serum with Dual Copper Peptides - Daily Hair & Scalp Use, Cosmetic Product

https://www.amazon.com/Neurogan-GHK-Cu-AHK-Cu-Hair-Serum/dp/B0G365L5Y4 Yes its expensive

I'm curious too, https://a.co/d/06nihha6 Wanted to try this maybe