Zinc Thymulin

Also known as: ZT, thymulin-zinc metallopeptide

Hair Restore

In plain English

Zinc thymulin is an experimental peptide applied to the scalp for hair thinning. Early, small human testing suggests it may keep hair in its growth phase longer and be well tolerated, but the evidence is preliminary — there is no large, high-quality trial confirming it works. It should be presented as investigational, not an established treatment.

The science

Zinc thymulin couples the thymic nonapeptide thymulin with a zinc ion required for activity; laboratory work in cultured human hair follicles indicates thymic peptides can prolong anagen and stimulate follicular pigmentation. A small open-label safety/efficacy analysis (18 subjects with androgenetic alopecia) reported significant increases in vellus and intermediate hairs and good tolerability over 6+ months, but it lacked a placebo/blinded control and was single-investigator.

References

• Vickers ER, J Clin Exp Dermatol Res 2016 (topical zinc-thymulin for androgenetic alopecia)
• Errante F et al., Front Chem 2020 (cosmeceutical peptides overview)