Is GHK-Cu with zinc thymulin legal in Australia?

A compounded scalp dropper serum, commonly 5 mg/mL of copper peptide with 10 micrograms/mL of zinc thymulin, so the copper peptide outweighs the thymic peptide 500 to one. Neither component has a published randomised trial for hair growth in people, and the combination has never been tested. The thymulin hair evidence is human follicles in a dish.

Hair loss clinics and compounders sell this as a leave-on scalp serum, typically in a 25 mL dropper bottle. The stated concentrations are usually GHK-Cu 5 mg/mL with zinc thymulin 10 micrograms/mL, and that ratio is the fact this page exists to point at.

Mechanism: GHK-Cu delivers copper to tissue and drives collagen and glycosaminoglycan production in culture and in rodent wound models, with claimed effects on follicle size and perifollicular vasculature. Thymulin is a nine amino acid thymic peptide that requires zinc for activity, and its zinc-bound form is the one used in these serums; the hair rationale comes from organ culture work showing thymic peptides modulate human follicle growth.

Regulatory history: Sold as a cosmetic or as a compounded topical preparation. Neither component is an approved drug for hair loss; the approved topical for androgenetic alopecia is minoxidil.

Registers or lists therapeutic goods on the ARTG and schedules substances in the Poisons Standard. Many peptides are Schedule 4 (prescription only), so possession without a prescription and personal importation are restricted even when no product is registered.

The classification above is the The Longevity Archive reading of Therapeutic Goods Administration listings for GHK-Cu with zinc thymulin at the reviewed date, not a legal opinion. Rules change, and importing, prescribing and possessing a compound can each be treated differently. Check the regulator directly before acting on anything here.