Healing & RecoveryResearch profile

TB-500

Thymosin Beta-4 · TB4 · Thymosin β4 Acetate

Think of it as the body's emergency repair crew.

TB-500 is like a fast-track pass for your body's natural healing process. This peptide encourages your cells to move and grow where they're needed most, whether that's healing a cut or repairing tissue damage. It also helps new blood vessels form, which is crucial for feeding injured areas with the nutrients they need to recover.

Imagine you've just had a tough workout and your muscles are screaming for relief. TB-500 swoops in to help reduce inflammation and kick-start the repair process, making it popular among athletes looking to bounce back quickly.

It's not just for muscles, though. Research suggests it might even help with heart tissue recovery after injury, which is pretty remarkable. Just remember, it's still under the research spotlight, so long-term effects aren't fully known yet.

Who it's for

Athletes who want to speed up recovery after intense training.
Weekend warriors dealing with nagging injuries.
Biohackers interested in cutting-edge recovery aids.

Probably not for you if…

Those looking for a well-established medical treatment.
People who prefer traditional recovery methods.
Anyone uncomfortable with experimental therapies.

Editorial summary for research context · Not medical advice

Mechanism of Action

TB-500 is a synthetic fragment of Thymosin Beta-4, a naturally-occurring 43-amino-acid actin-binding protein. Research suggests it sequesters G-actin monomers, modulates cell migration, and promotes angiogenesis and epithelial repair. Preclinical models show accelerated wound closure, cardiac muscle recovery post-infarct, and reduced inflammation via IL-10 upregulation.

Researched Benefits

Wound healing & epithelial repair

Dermal wound models show accelerated re-epithelialization and reduced scar thickness.

[Malinda et al. 1999]
[Philp et al. 2004]

Cardiac tissue recovery

Post-MI animal models demonstrate reduced fibrosis and improved left-ventricular function.

[Bock-Marquette et al. 2004]

Inflammation modulation

Upregulates anti-inflammatory cytokines (IL-10) and downregulates TNF-α in injury models.

Research Protocols

The following dosing ranges have appeared in published research protocols. Presented for informational purposes only — not a recommendation for human use.

Loading phase (research)

Dosage: 2 mg
Frequency: twice weekly
Timing: any time
Cycle: 4 weeks

Common loading phase in recovery research; some protocols split into 2 injections of 1mg each.

Maintenance phase (research)

Dosage: 2 mg
Frequency: once weekly
Timing: any time
Cycle: 4 weeks

Maintenance phase following initial loading.

Reported Side Effects

Injection-site irritation
Transient fatigue / 'head-cold' feeling reported anecdotally
Long-term safety in humans not established

Contraindications

Pregnancy and lactation
Active malignancy (theoretical concern due to angiogenic activity)

Stacking Partners

Peptides commonly paired with TB-500 in published research and protocol write-ups.

healing

BPC-157

Soft-tissue repair

healing

GHK-Cu

Skin quality & collagen synthesis

Vendor Pricing

75
Swiss Chems
Best $/mg
Size100mg
Total$405.56
/ mg$4.06/mg
In stock
View
75
Swiss Chems
Size10mg
Total$42.36
/ mg$4.24/mg
In stock
View
67
True Peptide Labs
Size10mg
Total$45.00
/ mg$4.50/mg
In stock
View
73
Platinum Lion Peptides
Size10mg
Total$44.99
/ mg$4.50/mg
In stock
View
73
Royal Peptides
Size100mg
Total$485.00
/ mg$4.85/mg
In stock
View
75
Swiss Chems
Size50mg
Total$281.56
/ mg$5.63/mg
In stock
View
72
Southern Aminos
Size10mg
Total$59.25
/ mg$5.93/mg
In stock
View
67
Puratek Peptides
Size10mg
Total$59.95
/ mg$6.00/mg
In stock
View

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Gear + Companions

Reconstitution supplies and research-backed supplement companions for TB-500. Editorial picks only — we earn a commission through Amazon on the click, no sponsorship.

Gear you'll need

· Reconstitution + storage essentials

Bacteriostatic Water 30mL (0.9% Benzyl Alcohol)
Empower Pharmacy / generic medical supply
Reconstitutes every lyophilized peptide. 28-day viability refrigerated.
View at Pantheon →
Insulin Syringes 31G × 5/16" × 0.5mL (100 count)
EasyTouch
31G × 0.5mL insulin syringes — the default size for sub-0.25mL peptide doses.
Buy on Amazon →
Alcohol Prep Pads (Sterile, 200 count)
Dynarex
Sterile 70% IPA prep pads — one per vial stopper + one per injection site.
Buy on Amazon →
1-Quart Sharps Disposal Container
BD / Becton Dickinson
FDA-cleared sharps container — pharmacies won't accept improvised disposal.
Buy on Amazon →

Stacks well with

· Supplement companions — independent evidence, not sponsored

Omega-3 Fish Oil (Molecularly Distilled, 240 softgels)
Nordic Naturals
Omega-3s lower systemic inflammation across the same pathways healing-axis peptides act on. The combination is additive in pre-clinical work.
Buy on Amazon →
Collagen Peptides Unflavored (2 lb)
Vital Proteins
Connective-tissue repair needs substrate — healing peptides signal repair; collagen peptides provide the raw amino acids.
Buy on Amazon →
Magnesium Glycinate 400mg (240 capsules)
Nested Naturals
Most people are sub-optimal in magnesium — glycinate form pairs well with recovery-focused protocols + doesn't cause GI distress.
Buy on Amazon →

As an Amazon Associate we earn from qualifying purchases · Disclosed per FTC guidelines

Research Papers

Thymosin beta 4 accelerates wound healing
Malinda KM, et al. · Journal of Investigative Dermatology · 1999
PubMed 10417637 →
Thymosin beta-4 activates integrin-linked kinase and promotes cardiac cell migration
Bock-Marquette I, et al. · Nature · 2004
PubMed 15525992 →

TB-500

Mechanism of Action