Thymosin alpha-1: a block, not a habit
An immune peptide with real human data, run as a defined block and then stopped cleanly.
Goal: Immune support during a heavy training and recovery stretch.
The decision
Thymosin alpha-1 is approved as a drug in other countries and has real human trials behind it, which puts it ahead of most of this list. I ran 1.6 mg twice a week, Tuesdays and Fridays.
What happened
I ran it for about seven weeks and was off it by late August. I had planned it as a defined block, so stopping was the plan, not a lapse.
Timeline
- Jul 5, 2026
Started: 1.6 mg, Tue and Fri.
- Aug 24, 2026
Confirmed off. Block over.
The graded evidence
One person's experience, from his own dosing log. It is not advice and it does not change any grade on this site. Talk to a licensed clinician before you act on anything here.