How Much Does TB-500 Cost in 2026?
TB-500 (Thymosin Beta-4) is one of the most studied peptides in the recovery and repair space, frequently researched alongside BPC-157. Prices range from under $25 for a 2mg vial to over $190 for 10mg depending on the supplier — a wide gap that makes comparison shopping especially important. This guide covers current pricing across active suppliers, where to find the best value per milligram, and what distinguishes good TB-500 from bad.
Current TB-500 Prices by Supplier
Prices below are sourced directly from supplier websites and updated nightly by our automated tracker. All prices in USD.
2mg Vials
| Supplier | Price | Price / mg | Location |
|---|---|---|---|
| Swiss Chems Only Option | $23.96 | $11.98/mg | Europe |
5mg Vials
| Supplier | Price | Price / mg | Location |
|---|---|---|---|
| Swiss Chems Best Price | $38.95 | $7.79/mg | Europe |
| Sports Technology Labs | $69.99 | $14.00/mg | USA |
| Behemoth Labz | $177.19 | $35.44/mg | USA |
10mg Vials
| Supplier | Price | Price / mg | Location |
|---|---|---|---|
| Buy Peptides USA Best Value/mg | $40.99 | $4.10/mg | USA |
| Swiss Chems | $42.36 | $4.24/mg | Europe |
| Peptide Lab | $100.00 | $10.00/mg | USA |
| Behemoth Labz | $194.38 | $19.44/mg | USA |
What Is TB-500?
TB-500 is the research name for a synthetic version of Thymosin Beta-4, a naturally occurring peptide consisting of 43 amino acids. Unlike most peptides that are synthesized from scratch, Thymosin Beta-4 is endogenously present in virtually all human and animal cells, playing a role in actin regulation, cell migration, and tissue repair processes.
It was first isolated from bovine thymus tissue in the 1960s. The synthetic version, TB-500, replicates the active region of Thymosin Beta-4 responsible for its studied biological activities. It has been the subject of research across a range of tissue types including muscle, tendon, ligament, heart, and neural tissue.
What Researchers Study TB-500 For
- Muscle repair and recovery — Animal studies have examined TB-500's role in repairing torn or damaged muscle tissue, including cardiac muscle.
- Tendon and ligament healing — Frequently studied alongside BPC-157 for orthopedic repair models in rodents.
- Cardiovascular tissue — TB-500 has been examined in cardiac injury models, including myocardial infarction research in animals.
- Anti-inflammatory effects — Actin-binding properties studied for their role in regulating inflammation responses.
- Hair growth — Some research has examined TB-500's influence on hair follicle stem cells, though evidence is limited.
- Wound healing — Skin wound closure studies in animal models showing accelerated healing.
TB-500 vs. BPC-157: Key Differences
These two peptides are the most commonly paired compounds in the research peptide space. Understanding the distinction helps frame what each is actually being studied for:
| TB-500 | BPC-157 | |
|---|---|---|
| Full name | Thymosin Beta-4 | Body Protection Compound 157 |
| Chain length | 43 amino acids | 15 amino acids |
| Origin | Endogenous (naturally in cells) | Derived from gastric juice protein |
| Primary research focus | Systemic repair, muscle, cardiac | Localized repair, GI tract, tendons |
| Best price/mg (2026) | ~$4.10/mg | ~$6.60/mg |
| Typical vial sizes | 2mg, 5mg, 10mg | 5mg, 10mg |
In research settings, BPC-157 and TB-500 are often examined together on the hypothesis that they may address complementary aspects of tissue repair. TB-500 is generally more expensive per milligram than BPC-157 due to its larger and more complex structure.
Is TB-500 Legal?
In the United States, TB-500 is not a scheduled controlled substance. Research peptide suppliers sell it legally as a research chemical for laboratory use only. It cannot legally be sold for human consumption or marketed as a drug or supplement.
TB-500 is on the WADA Prohibited List, making it banned for competitive athletes subject to anti-doping testing. It is also more strictly regulated in some countries — notably Australia, where it requires a prescription. Always verify the legal status in your jurisdiction before ordering.
Notable Suppliers (2026)
Buy Peptides USA
Swiss Chems
Sports Technology Labs
Peptide Lab
What to Look For in a TB-500 Supplier
Because TB-500 has a more complex structure than shorter peptides like BPC-157, synthesis quality is especially important. Key criteria:
- Third-party COAs with HPLC purity results — Look for 98%+ purity from a named independent testing lab. In-house testing is not sufficient.
- Correct molecular weight verification — TB-500 has a specific molecular weight (~4963 Da). Mass spectrometry confirmation in the COA is a strong positive signal.
- Lyophilized powder only — Should be sold as freeze-dried powder. Pre-mixed solutions degrade faster and are a quality red flag.
- Clear research-only language — Reputable suppliers do not make therapeutic claims and clearly label products for laboratory research use only.
- Established operating history — Prefer suppliers with multi-year track records and verifiable community reputation.
Frequently Asked Questions
How much does TB-500 cost?
In April 2026, TB-500 ranges from $23.96 for a 2mg vial (Swiss Chems) to $194.38 for a 10mg vial (Behemoth Labz). The best price per milligram is currently Buy Peptides USA at $40.99 for 10mg ($4.10/mg), closely followed by Swiss Chems at $42.36 for 10mg ($4.24/mg).
Why is TB-500 more expensive than BPC-157?
TB-500 is a 43 amino acid peptide versus BPC-157's 15 amino acids. Longer peptide chains are significantly more complex and expensive to synthesize correctly. The larger molecule also requires more rigorous quality control to verify correct folding and purity, which adds to production costs.
Does TB-500 need to be refrigerated?
Lyophilized TB-500 powder is stable at room temperature during shipping but should be refrigerated (2–8°C) for longer storage. Once reconstituted with bacteriostatic water, store refrigerated and use within 4–6 weeks. Keep away from light and do not freeze reconstituted peptide.
Is TB-500 the same as Thymosin Beta-4?
TB-500 is the common research name for a synthetic peptide that replicates the active region of Thymosin Beta-4. Technically, full-length Thymosin Beta-4 and TB-500 have slightly different structures, but TB-500 is synthesized to capture the biologically active fragment. In the research peptide market, the names are used interchangeably, but always confirm with the supplier what specific sequence they are selling.
What supplies do I need to work with TB-500?
A standard research setup requires bacteriostatic water for reconstitution, insulin syringes (typically 29g or 31g), alcohol prep pads for sterile technique, and a sharps container for safe disposal. All of these are available through our peptide supplies section or on Amazon.
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