TB-500 explained: what the thymosin beta-4 fragment is, where the animal research stands, the July 2026 FDA vote and listed US vendor prices compared.
TB-500 10mg from Reviva X, lyophilized powder. Third-party COA published by the vendor. Research use only.
Sold and shipped by Reviva X. Shipping times, returns and regional restrictions are set on the vendor’s page; most US orders arrive in 1–3 business days in discreet packaging.
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TB-500 10mg from Reviva X, lyophilized powder. Third-party COA published by the vendor. Research use only.
TB-500 peptide for research, 10mg vial. Independent lab testing with the lot COA published before purchase....
Wolverine Stack peptide for sale: BPC-157 + TB-500 in one vial, independently lab tested, lot COA published...
TB-500 10mg from Mission Peptides, lyophilized powder. Third-party COA published by the vendor. Research use only.
BPC-157 + TB-500 Blend 10mg from Mission Peptides, lyophilized powder. Third-party COA published by the ven...
BPC-157 + TB-500 Blend 10mg from Modern Med Peptides, lyophilized powder. Third-party COA published by the ...
TB-500 is the active fragment of thymosin beta-4, studied for cell migration, angiogenesis and tissue-repai...
| Product | Form | Size | Testing | UK delivery | Price |
|---|---|---|---|---|---|
| Reviva X TB-500 10mg | Lyophilized powder | 10mg | Third-party COA | Ships from a UK warehouse, 24h dispatch | £29.99 |
| Real Peptides TB-500 (Thymosin Beta-4) | Lyophilized powder | 10mg | Third-party COA | — | $48.00 |
| Real Peptides Wolverine Peptide Stack | Lyophilized powder | 10mg BPC-157 + 10mg TB-500 | Third-party COA | — | $40.80 |
| Mission Peptides TB-500 10mg | Lyophilized powder | 10mg | Third-party COA | Vendor ships internationally | $39.99 |
| Mission Peptides BPC-157 + TB-500 Blend 10mg | Lyophilized powder | 10mg | Third-party COA | Vendor ships internationally | $74.99 |
| Modern Med Peptides BPC-157 + TB-500 Blend 10mg | Lyophilized powder | 10mg | Third-party COA | Not stated by the vendor | $64.99 |
| Peptide God TB-500 | Lyophilized powder | — | — | — | $35.00 |
| Product | Vendor | Our score |
|---|---|---|
| TB-500 (Thymosin Beta-4) | Real Peptides | 4.3 |
| Wolverine Peptide Stack | Real Peptides | 4.2 |
| TB-500 10mg | Mission Peptides | 4.2 |
| BPC-157 + TB-500 Blend 10mg | Mission Peptides | 4.0 |
| BPC-157 + TB-500 Blend 10mg | Modern Med Peptides | 4.0 |
| TB-500 | Peptide God | 3.9 |
| TB-500 10mg | Reviva X | 3.8 |
Real Peptides on Trustpilot: 4.2/5 from 85 reviews (last 12 months), checked Nov 2026 · read them on Trustpilot
What Real Peptides customers say on Trustpilot (5★ 76% · 4★ 5% · 3★ 0% · 2★ 1% · 1★ 18%)
Summary of the reviews written by our editors; the reviews themselves are on Trustpilot.
Mission Peptides on Trustpilot: 4.6/5 from 25 reviews, checked Nov 2026 · read them on Trustpilot
Ratings are our editors’ scores from one public rubric (COA, price per mg, delivery, returns, vendor reputation). They are not customer reviews. How we review
TB-500 was one of six peptides a US FDA advisory committee recommended on 23-24 July 2026 for the list of substances compounding pharmacies may use; its own vote, on 23 July, was 8-6 with one abstention. TB-500 is still not an approved drug in the US, is not a licensed medicine in the UK, and is sold by research vendors labelled for research use only.
This page covers what TB-500 is, where the research stands, how its regulatory position has moved since 2023, and what the two vendors in our data charge. It does not cover use, because there is no approved human use.
TB-500 is a synthetic peptide fragment related to thymosin beta-4, a protein the human body makes naturally. The name "TB-500" is a trade label used by research vendors rather than a pharmaceutical name, which is why one product in our data is listed as "TB-500 (Thymosin Beta-4)".
It is different from BPC-157, the peptide it is most often paired with. BPC-157 is derived from a protein found in gastric juice; TB-500 comes from the thymosin family. The vendors sell them together as the "Wolverine stack", but they are separate compounds with separate research histories. Our BPC-157 vs TB-500 page sets the two side by side.
TB-500 study primarily exists in animal models for tissue repair, and few results in humans are to be found. The essence of that statement is crucial, because vendor descriptions are often misleading about the topic.
The vendor listings are quite honest about this. The TB-500 listing for Peptide God mentions that it has been researched for flexibility and healing, however, it also mentions as the cons “limited human studies” and “for research purposes only.” The Real Peptides company states that their TB-500 is “not the same as BPC-157 peptide,” and is only available for research purposes.
I would read any claim of benefit as a statement about animal studies, not confirmed in controlled human trials. If a seller or clinic tells you TB-500 treats an injury, that is a medicinal claim, and in the UK it is exactly the kind of claim regulators look at.
TB-500's US status has moved twice in three years, but neither move made it an approved medicine. The timeline is short.
In the UK, none of this applies directly. The MHRA has not licensed TB-500, and how a product is promoted decides whether it is treated as a medicine. Our TB-500 UK guide goes through that in detail.
Two vendors in our data sell TB-500 on its own, and one sells it in a bundle. These are their listed US prices.
| Product | Vendor | Listed price (USD) | Stated contents | Testing claim |
|---|---|---|---|---|
| TB-500 | Peptide God | $35.00 | Vial size not in our data | Lab-tested, at least 99% purity |
| TB-500 (Thymosin Beta-4) | Real Peptides | $48.00 | 10 mg, freeze-dried powder | Third-party COA per batch |
| Wolverine Peptide Stack | Real Peptides | $40.80 | 10 mg TB-500 + 10 mg BPC-157 | Third-party COA per batch |
The Peptide God TB-500 has the lowest sticker price at $35.00 (US dollars), but without a stated vial size we cannot say whether it is cheaper per mg than Real Peptides' $4.80 per mg. The oddity in the table is that Real Peptides' Wolverine bundle, which includes the same 10 mg TB-500 plus a BPC-157 vial, is listed for less than its TB-500 on its own. Prices change, so check the live listing.
Both sellers are located in the USA and it is yet to be confirmed that any of them delivers their products to the UK. Check the vendor's site yourself.
Prices are in US dollars, so card and exchange fees may apply. Imports can be held by Border Force or attract VAT or duty. The vendors' free-delivery thresholds, $100 at Peptide God and $250 at Real Peptides, and Peptide God's 30-day free returns are US terms. TB-500 is also on the WADA Prohibited List, so it is off-limits for any athlete subject to testing under UK Anti-Doping. For the full vendor comparison across the stack, see Wolverine stack peptides.
Discounts shown are real: the vendor’s own sale price, or how much cheaper per mg a product is than the average of the vendors on this page.