TB-500
Thymosin Beta-4 analogue. Systemic healing and tissue regeneration for whole-body recovery.
Last updated: May 2026
Category
Healing & Recovery
Frequency
2x weekly
Research
Phase 2 Clinical TrialsWhat is TB-500?
TB-500 is a synthetic version of the naturally occurring peptide Thymosin Beta-4 (Tβ4), a protein found in all human cells at particularly high concentrations in platelets and wound fluid. It plays a critical role in cell migration, angiogenesis, and the inflammatory response following injury. Browse the full peptide library for related healing compounds.
Unlike BPC-157 which works more locally around the injection site, TB-500 is a systemic healing peptide that travels throughout the body via the bloodstream, making it effective even when injected far from the injury. This makes it uniquely suited for multiple injuries, widespread inflammation, or systemic recovery needs.
Athletes have used TB-500 extensively for accelerating recovery from muscle tears, tendon injuries, and chronic overuse injuries. For skin-specific healing, consider combining with GHK-Cu. For gut inflammation alongside systemic healing, KPV can be run concurrently. TB-500 is also studied for cardiac repair, wound healing, and has generated interest for its potential hair regrowth effects.
How It Works
Actin Regulation: TB-500's primary mechanism is binding to actin (G-actin), a protein critical to cell structure and movement. This promotes cell migration to injury sites: the first step in healing.
Angiogenesis: Like BPC-157, TB-500 promotes the formation of new blood vessels, improving delivery of oxygen and nutrients to damaged tissue.
Anti-Inflammatory: TB-500 modulates inflammation by downregulating inflammatory cytokines and promoting an anti-inflammatory environment at injury sites.
Stem Cell Activation: TB-500 activates progenitor cells (stem-cell-like cells) that differentiate into muscle, nerve, and connective tissue, enabling true tissue regeneration rather than just scar formation.
Benefits
- Systemic healing: reaches all tissues via bloodstream
- Accelerated muscle, tendon, and ligament repair
- Reduced inflammation throughout the body
- Improved flexibility and range of motion
- Cardiac tissue repair (studied in heart failure models)
- Potential hair regrowth in androgenic alopecia
- Nerve repair and neuroprotection
Dosing Described in Research and Labels
| Phase | Dose | Frequency | Duration |
|---|---|---|---|
| Tissue-repair research | No established human dose | Subcutaneous (research) | Not established |
These figures summarise what published research and approved labels describe. They are educational, not a recommendation or a personal protocol. Any dose, schedule, or decision to use a compound belongs with a licensed prescriber.
Side Effects
Common
- ⚠Fatigue or lethargy (common in first 1 to 2 weeks, resolves)
- ⚠Mild headache
- ⚠Injection site reactions
- ⚠Temporary head rush or lightheadedness
Rare
- •Tumor growth promotion (theoretical concern: avoid with active cancer)
- •Flushing
- •Nausea at high doses
Who Should NOT Use TB-500
- ✕Active cancer or history of cancer
- ✕Pregnancy or breastfeeding
- ✕Lyme disease (anecdotal concern about symptom exacerbation)
What to Expect
Some users feel fatigue as the immune and inflammatory systems respond. Acute inflammation at injury sites may temporarily increase then resolve.
Noticeable improvement in pain and mobility. Stiffness reduces. Many report injuries healing faster than any previous protocol.
Significant tissue repair. Users typically transition to maintenance dosing. Energy and performance improve as systemic inflammation drops.
Most complete their cycle. Hair regrowth users may start to notice early effects around month 3.
Notes from Ho Chi Minh City
TB-500 is the slower, deeper half of the BPC plus TB recovery pairing, and the use case that recurs in HCMC is chronic tendon flare-ups, the Achilles aggravated by the broken-tile sections of the District 2 riverside running paths, or a BJJ shoulder tweak from Saigon Sports Club. Trial and user reports describe a loading-then-maintenance pattern over several weeks for soft-tissue recovery. Handling is descriptive: the reconstituted vial is refrigerated, often parafilm-sealed against humidity, and used inside about two weeks. The cost is the real constraint, verified TB-500 through cold-chain importers runs 2.5 to 4 million VND per 5mg vial, roughly double BPC, so the common pattern is reserving TB for an actual injury cycle and staying on BPC otherwise. Clinics like Family Medical Practice in District 2 will not prescribe or stock it; it is research-grade only. Dose and schedule are a prescriber's call.
Sourcing in Vietnam
TB-500 is not stocked at Long Châu, Pharmacity, or any retail pharmacy in Vietnam. Sourcing is through cold-chain importers with COA verification. Expect 2.5 to 4 million VND per 5mg vial; the price gap vs BPC-157 reflects synthesis difficulty. See the supplier list and COA guide before purchasing.
FAQ
Q: What is the difference between TB-500 and BPC-157?
A: BPC-157 is more locally-acting (most effective near the injury) and is particularly strong for gut healing. TB-500 is systemic, it travels throughout the body and is better for widespread inflammation, multiple injuries, or when you cannot inject near the injury. The BPC-157 + TB-500 stack combines both mechanisms.
Q: Does TB-500 really grow hair?
A: Thymosin Beta-4 has been studied for hair regrowth and activates hair follicle stem cells. Anecdotal reports from users suggest noticeable regrowth when used consistently for 3+ months. Results are modest and individual. It is not a replacement for proven hair loss treatments.
Q: Can I inject TB-500 in my stomach like other peptides?
A: Because TB-500 is described as systemic rather than locally-acting, its delivery is discussed as subcutaneous rather than site-specific. Where and how it is administered is a clinical decision, not a self-injection how-to. Source from the community-verified supplier list and verify purity with the COA verification guide. For an overview of Vietnam's peptide regulation, see the legality guide.
Where to Get TB-500 in Vietnam
See our community-verified supplier list with COA verification and cold-chain shipping to Vietnam.
Related Peptides
Related Guides
Research & Sources
- Thymosin beta 4: actin sequestration, blood vessel formation, and tissue regeneration · Goldstein AL, Hannappel E, Kleinman HK · Annals of the New York Academy of Sciences (2012) PMID: 23045981
Foundational review of thymosin beta-4 mechanisms underlying TB-500 wound healing and angiogenic effects.
- Thymosin beta 4 and cardiac protection: implication in inflammation and fibrosis · Sosne G, Qiu P, Goldstein AL, Wheater M · Annals of the New York Academy of Sciences (2010) PMID: 20425002
Cardiac and anti-fibrotic effects of thymosin beta-4 supporting systemic healing claims.
- Thymosin beta-4 promotes wound healing and tissue regeneration: clinical and preclinical evidence · Crockford D, Turjman N, Allan C, Angel J · Annals of the New York Academy of Sciences (2010) PMID: 20840533
Phase 2 clinical trial data supporting wound-healing claims and dosing rationale.
- Thymosin beta-4: a multi-functional regenerative peptide · Sosne G, Qiu P, Christopherson PL, Wheater MK · Expert Opinion on Biological Therapy (2007) PMID: 17696818
Mechanism review covering angiogenesis, anti-inflammatory, and stem cell recruitment effects.
Important Disclaimer
Educational content only. Not medical advice. Peptides discussed on this page are not approved by Vietnam’s Ministry of Health (Bộ Y Tế) or the Drug Administration of Vietnam (DAV) for the indications described. Research peptides are not stocked at Long Châu, Pharmacity, or any retail pharmacy in Vietnam. Consult a licensed physician before any use.