1 forms studied

Does copper help with hair thinning?

Not on the evidence we can stand behind. Here is every form that has been studied for it, and what each one showed.

Form by form

Strongest first. Evidence for one salt or ester is not evidence for another, so each is rated on its own trials.

Trials used 1–2 mg · 1 study · tested as topical copper peptides (GHK-Cu, AHK-Cu) — a different chemical form and a different route of administration (topical, not oral)

Compare every form of copper →