TB-500

Research

Thymosin Beta-4 Fragment

Aliases
Thymosin β4, Tβ4
Administration
Subcutaneous injection, Intramuscular injection

Documented side effects

Tier 1 · Peer-reviewed / regulatory

Fatigue

A sense of tiredness reported by some users, particularly during initial use.

Transient head rush

A brief, temporary lightheaded sensation sometimes reported shortly after injection.

Well-tolerated overall

Most users do not report significant adverse effects.