Week 1 GHK Cu scalp protocol., Noticed subtle changes in hair texture and appearance already., Tracking progression weekly., #GHKCu #HairGrowthJourney #ScalpHealth #Biohacking #hairexperiment What Are the Phases of Hair Growth? LA FUE Hair New York Hair Growth Cycle: Can You Speed It Up? Longevita GHK Cu Hair Growth Copper peptides (GHK Cu) have been studied for decades for their role in tissue repair and that same biology applies to hair. Research shows GHK Cu may help strengthen existing hair follicles, reduce