Side effects

TB-500 (Thymosin Beta-4 fragment) - side effects

TB-500 has minimal documented side effects in the research literature. Goldstein and colleagues report no systemic toxicity. Most common are transient fatigue (hours post-administration) and injection-site reaction.

Documented effects

Sorted by severity. Source cited when published.

Transient fatigue 2-12 hours post-dose

mild·common

Injection-site reaction

mild·common

Headache (dose-dependent)

mild·uncommon

Dosing

TB-500 dosing protocol

Encyclopedia

Full scientific profile for TB-500

Disclaimer: data is curated from research literature for in-vitro experiments. This is not medical advice.

Last reviewed: 6 May 2026by PeptidLabs Editorial

Side effects

TB-500 (Thymosin Beta-4 fragment) - side effects

Documented effects

Sorted by severity. Source cited when published.

Transient fatigue 2-12 hours post-dose

mild·common

Injection-site reaction

mild·common

Headache (dose-dependent)

mild·uncommon

Dosing

TB-500 dosing protocol

Encyclopedia

Full scientific profile for TB-500

Disclaimer: data is curated from research literature for in-vitro experiments. This is not medical advice.

Last reviewed: 6 May 2026by PeptidLabs Editorial