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TB-500

TB-500 is a synthetic version of thymosin beta-4, a naturally occurring peptide involved in tissue repair and regeneration

ACommunity BenefitPhysical Performance & Recovery
AAE signal

What is TB-500?

TB-500 is a synthetic version of thymosin beta-4, a naturally occurring peptide involved in tissue repair and regeneration. It promotes healing of injuries, reduces inflammation, and is popular among athletes for accelerating recovery.

Across SelfAssay's corpus, TB-500 appears in 391 first-hand reports from 521 contributors, with overall community sentiment that reads as positive. Most of that discussion centers on Physical Performance & Recovery, Pain & Headache Relief, and Inflammation.

On SelfAssay, TB-500 has a A (strong) Community Benefit read and a A (lower selected observed signal) observed AE-signal read. These are independent signals: how reliably people report the benefit they were after, and the identifiable-author share reporting selected serious or meaningful adverse events.

What people use TB-500 for

Physical Performance & Recovery186 reportsA
Pain & Headache Relief123 reportsA
Inflammation26 reportsC
Skin & Hair Health15 reportsB
Sleep Quality & Insomnia9 reportsC
Community × Research
Community = first-hand reports · Research = human trials (tap a verdict to read the cited studies)
community & research agree · they diverge
A
Community grade · Physical Performance & Recovery
People report on it, but the research on its main use isn’t established yet.
UseCommunityResearch
Physical Performance & RecoverymainANot studied·
Pain & Headache ReliefANot studied·
InflammationCNot studied·
Skin & Hair HealthBLimited1·
Sleep Quality & InsomniaCNot studied·
Anxiety & Stress ReliefFNot studied·
+ 1 more use
AE signalA1.2% of 413 deduplicated identifiable authors reported a selected serious or meaningful adverse event (e.g. aggressive cancer growth, fainting). The severity-weighted AE signal used for the letter was 0.8% before sample-size adjustment toward a fixed conservative 1.8% prior in either direction. 191 deleted-author comments were excluded because independent people cannot be established. A = lower observed AE signal, D = higher. Decision support, not a clinical claim.

What users report

From 391 first-hand reports across the community corpus.

Most-reported effects
recovery 40reduced inflammation 31accelerated healing 28pain-relief 25healing 19reduced-elbow-pain 18healed-tendons 14shoulder-pain-relief 9
Most-reported side effects
severe-anxiety 5support-tumor-growth 5injection-site-itching 4diarrhea 4increased-sweating 3degradation 3

What the community says about TB-500

Administration Protocols and Stacking Strategies454 reports

Most users approach TB-500 by stacking it with BPC-157, often utilizing pre-blended vials for convenience or injecting separately to maintain precise control over individual dosages. Many report success with daily subcutaneous injections, with some titrating from 250mcg up to 1mg or higher to address specific injuries like tendonitis or shoulder tears. While some users prefer pinning near the site of pain, others find abdominal fat stores equally effective, and a few even incorporate collagen or GHK-Cu to further support tissue repair. Although some individuals report rapid recovery within weeks, a few outliers note that results can take months, and others caution against starting multiple new peptides simultaneously to better monitor for potential adverse reactions or injection site sensitivity.

Tissue Repair and Performance Recovery424 reports

Many people report that stacking TB-500 with BPC-157 creates a powerful synergy for accelerating the healing of structural injuries like tendonitis, labrum tears, and rotator cuff issues. While some users prefer injecting directly at the site of pain, others find systemic relief by pinning in stomach fat, often noting significant pain reduction and improved mobility within just a few weeks. Dosing varies widely, with some finding success at 250-500mcg daily, while others titrate up to 2mg for more stubborn cases. Although most see impressive results, a few outliers report no noticeable changes, and some users caution that GHK-Cu in pre-mixed blends can sometimes cause localized injection site reactions.

Chronic Pain and Inflammation Management124 reports

Many people report that combining TB-500 with BPC-157 is a game changer for managing chronic pain and stubborn tendonitis, often finding it more effective than traditional treatments like physical therapy or cortisone. Users frequently observe significant relief in joint and muscle issues, such as shoulder impingements, back pain, and tennis elbow, with some noting improvements in mobility and pain levels within just a few days or weeks. While many stick to standard daily doses around 250mcg to 500mcg of each, some users opt for more aggressive protocols, like 1mg to 2mg, to accelerate healing for severe injuries. Although most experiences are positive, a few outliers mention that the peptides didn't provide the expected relief or, in rare cases, triggered reactions like headaches or increased inflammation.

Systemic Side Effects and Risks92 reports

Users report a wide spectrum of systemic reactions to TB-500, ranging from life-changing recovery to severe, acute physical distress. While many find significant relief for chronic pain and injuries, some individuals experience alarming side effects like extreme anxiety, panic attacks, and symptoms involving vomiting, swelling, and dizziness. A few users have noted subtle, persistent issues such as anhedonia, sleep disturbances, vivid dreams, or tingling sensations, while others express long-term concerns regarding the theoretical potential for accelerating tumor growth. Because many people stack these compounds with other peptides, it is often difficult to isolate the culprit, leading to a strong consensus that one should introduce new substances slowly to monitor for individual adverse reactions.

Themes are clustered from first-hand reports and summarized automatically. They describe what people report, not clinical fact.

TB-500 & your bloodwork

Documented to raise hdl · PMID 35436057
Documented to lower insulin · PMID 35436057
Documented to lower total cholesterol · PMID 35436057
Documented to lower triglycerides · PMID 35436057

Research and evidence for TB-500

Community Benefit figures come from qualified first-hand reports for the displayed purpose; the observed AE signal uses its separate deduplicated identifiable-author denominator. The 248 studies and 1 registered clinical trial linked below are research context only: they are not reconciled to the headline purpose or outcome and do not award either community grade. Published studies also document measurable effects on lab markers including hdl, insulin, and total cholesterol, each linked to its source on PubMed below. Displayed counts and grades are computed from their stated source and denominator, not generated; unavailable inputs are withheld rather than presented as a favorable result.

Is TB-500 safe?

TB-500 carries an observed AE-signal grade of A (lower selected observed signal), derived from 413 deduplicated identifiable authors reporting selected serious or meaningful adverse events rather than from a clinical risk model. The side effects people mention most often are severe-anxiety, support-tumor-growth, injection-site-itching, and diarrhea. This is not a complete safety profile, and TB-500 can interact with other compounds and existing conditions. Review any plan with a qualified clinician before use.

Frequently asked questions

What is TB-500?

TB-500 is a synthetic version of thymosin beta-4, a naturally occurring peptide involved in tissue repair and regeneration. It promotes healing of injuries, reduces inflammation, and is popular among athletes for accelerating recovery.

What is TB-500 used for?

In SelfAssay's community corpus, TB-500 is most often used for Physical Performance & Recovery, Pain & Headache Relief, Inflammation, and Skin & Hair Health. Each use case is graded separately, based on how consistently users report the result they were after.

What effects do people report from TB-500?

The most frequently reported effects are recovery, reduced inflammation, accelerated healing, pain-relief, and healing. Overall community sentiment toward TB-500 reads as positive, drawn from 391 first-hand reports.

What are the side effects of TB-500?

The side effects users mention most often are severe-anxiety, support-tumor-growth, injection-site-itching, diarrhea, and increased-sweating. These are self-reported and not a complete safety profile; consult a clinician before use.

Is TB-500 safe?

SelfAssay does not determine clinical safety. Its observed AE-signal grade is A (lower selected observed signal), based on deduplicated identifiable-author reports and not your individual health context.

How effective is TB-500?

TB-500 holds a Community Benefit grade of A (strong) on SelfAssay, with its strongest grade for Physical Performance & Recovery. The grade reflects aggregated community reports; linked research is shown separately as context and results are not guaranteed.

How much research is there on TB-500?

SelfAssay's view of TB-500 draws on 248 studies, 1 registered clinical trial, and 391 first-hand community reports, refreshed as new evidence is published.

Does TB-500 affect lab markers or bloodwork?

Published studies document TB-500 as changing markers including hdl, insulin, total cholesterol, and triglycerides. Each is linked to its PubMed source on this page.

391first-hand reports
521unique authors
248studies
1clinical trials

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Decision support, not medical advice. Grades reflect community-reported experience and published literature, not a clinical assessment of your individual case. TB-500 is provided for informational purposes; consult a qualified clinician before use.