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People can use peptides for weeks and up to years
On the scalp it can improve the environment around follicles to support fuller, healthier-looking hair over time
But start by using it on alternate days if your skin is sensitive
10.1016/j.immuni.2017.03.019 66 MandalP
GHK-Cu works on the follicle itself: it enlarges hair follicle size, strengthens follicles at the structural level (reducing the miniaturization that drives androgenetic alopecia), and stimulates angiogenesis to improve blood supply to the scalp
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