PubMed
Thymosin beta4: a multi-functional regenerative peptide (review)
Goldstein AL, Kleinman HK. Ann N Y Acad Sci. 2012
Healing & RecoveryResearch OnlyC
TB-500 Fragment
TB4 Fragment
TB4-derived fragment used in repair protocols; limited direct human data.
Last reviewed . First published . By the PeptIQ team.
Observational report only — live community data. Not medical advice. Does not recommend doses, protocols, or treatments.
- Studies cited
- 4
- Research grade
- C
- Experience
- 56
- Activity
- 84
Overall check-ins
Trackers & reports
Overview
About TB-500 Fragment
TB4-derived fragment used in repair protocols; limited direct human data.
- Category
- Healing & Recovery
- Regulatory status
- Research Only
- Also known as
- TB4 Fragment
- Self-reports
- 26
Community
What 26 users report
26 community reports
Overall experience
From check-in ratings — separate from side effects logged below. Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Favorable 3% · Mixed 97% · Unfavorable overall 0%
Most reported benefits
Benefits users selected when logging a favorable or mixed check-in.
Recovery
176
Most logged side effects
Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Injection site irritation
171
Self-reported dose per injection
Median bucket: 2+ mg · Most common: 2+ mg
Reports span 1 to ≥ 2 mg (open-ended top bucket)
1–2 mg
59
2+ mg
117
Anonymized self-reports from PeptIQ users — not prescribing guidance. Buckets group similar logged amounts; open-ended top buckets mean “at least” that dose.
Commonly stacked with
How repeat users are trending
Among repeat reporters, 79% said they felt similar to their last entry, 21% more positive, and 0% more negative.
Overall, repeat reporters leaned more positive than their previous entry.
Median gap between entries: 188 days · Based on 24 repeat reporters
Research
Sources (3)
- Wiki study page →Source
- Wiki study page →Source
PubMed
Thymosin beta 4 and wound healing: a multifunctional peptide
Goldstein AL, Kleinman HK. Expert Opin Biol Ther. 2010
- Wiki study page →Source
PubMed
Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance
Mendias CL, Awan TM. Sports medicine (Auckland, N.Z.). 2026
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Frequently asked
What do PeptIQ users report about TB-500 Fragment?
This page summarizes 26 anonymized self-reports from PeptIQ users who track TB-500 Fragment, including commonly reported effects and co-tracked peptides. These are observational patterns, not clinical outcomes.
How do side effects relate to overall experience for TB-500 Fragment?
PeptIQ separates overall check-in ratings (favorable, mixed, or unfavorable) from logged side effects like nausea or fatigue. Users often report benefits and side effects in the same check-in — a high experience score does not mean zero side effects were noted.
What research is cited for TB-500 Fragment?
3 sources are linked on this page, including PubMed articles, clinical trial registries, and FDA labels where applicable. Citations describe published research — not recommendations.
Is TB-500 Fragment safe to use?
This wiki does not assess safety or recommend use. TB-500 Fragment is listed as Research Only. Consult a licensed clinician for personal medical decisions.
What are the purported benefits and uses of TB-500 Fragment?
This wiki summarizes observational community reports and linked citations for TB-500 Fragment. It does not assert therapeutic benefits. See the sources list on this page and the educational profile for TB-500 Fragment for study-level context — not medical advice.
What is the legal status of TB-500 Fragment?
TB-500 Fragment is listed in PeptIQ as Research Only. Regulatory status varies by jurisdiction and can change. This wiki does not provide legal advice; check current FDA and local rules and talk with a licensed clinician or counsel for personal decisions.
What are the known or theoretical side effects and risks of TB-500 Fragment?
Safety data quality for TB-500 Fragment varies widely by compound and study design. PeptIQ does not establish a risk profile here. Review primary literature, product labeling where applicable, and clinician guidance. Community self-reports are not a substitute for clinical evidence.
What is the current state of research on TB-500 Fragment?
This page links 3 sources for TB-500 Fragment. Evidence maturity differs by application — some peptides have large human programs, others are mostly preclinical. Treat citation counts as literature volume, not proof of efficacy.