Thymosin Beta-4 vs TB-500: Full Protein vs Fragment
Thymosin beta-4 vs TB-500: the natural 43-amino-acid protein vs the synthetic fragment sold as TB-500, evidence limits and reports. Not medical advice.
Anonymous user report. Not medical advice. Peptides discussed are not FDA-approved for the uses described. Editorial process →
Short answer
Thymosin beta-4 (Tβ4) is a naturally occurring 43-amino-acid protein involved in actin binding and studied in wound and tissue-repair research. "TB-500" is a marketing name for synthetic material usually described as a short active fragment of Tβ4; products vary and are not approved medicines. Research on full Tβ4 does not automatically transfer to fragments. Peptide Confessions does not publish dosing, timing, injection or sourcing guidance.
What users report here
Anonymous accounts are collected on the TB-500 reports. They are personal stories, often with other compounds in the mix, not evidence of effect.
Related topics
related peptides:
community guides:
More confessions from the archive
Community Q&A
- Is TB-500 the same as thymosin beta-4?
- Not exactly. TB-500 usually refers to a synthetic fragment; thymosin beta-4 is the full natural protein.
- Is TB-500 approved?
- No. It is sold as a research chemical and is prohibited in sport by WADA.
- Does this page give dosing advice?
- Peptide Confessions does not publish dosing, timing, injection or sourcing guidance.
Anonymous first-hand reports plus sourced context — educational only, not medical advice. Editorial policy & corrections.