tb 500 hair: Frequently asked questions

Partially. Follicles activated by TB-500 will complete their current anagen cycle (2–6 years for scalp hair), but once the peptide clears from circulation, dormant follicles won't receive continued activation signals. New hairs grown during the protocol remain until their natural cycle ends, but density won't continue improving without ongoing dosing. This mirrors minoxidil dynamics: withdrawal doesn't cause immediate shedding, but gradual return to baseline over 6–12 months as newly activated follicles re-enter telogen without further stimulus.