Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
TB-500 is a synthetic N-acetylated heptapeptide (Ac-LKKTETQ) corresponding to amino acids 17–23 of thymosin β4, the actin-binding region of the native 43-residue protein. Despite widespread vendor labeling, TB-500 is NOT identical to full-length thymosin β4 (Tβ4); it is a short 7-amino-acid fragment containing the central actin-binding motif. It is sold as a research chemical and is not FDA-approved for any human indication.
3 of 22 vendors lab-verified
Verified purity per dollar — the cheapest that's actually been tested
vial · 20mg· ngpeptide.com· price updated today
$64.00✓ $3.20/mg
single-vial price — packs may be lower
vial · 10mg· peptideplugs.com· price updated today
$50.00✓ $5.00/mg
36% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· orosresearch.com· price updated today
Lot OR-LPTB10-326-B5· tested 2026-04-09· vendor-declared ✓
$64.99✓ $6.50/mg
51% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· glacieraminos.shop· price updated today
$58.99✓ $5.90/mg
46% more per mg vs cheapest
single-vial price — packs may be lower
vial · 25mg· skyepeptides.com· price updated today
$129.00✓ $5.16/mg
38% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· peptidesupplyco.com· price updated today
Lot TB1006032026· tested 2026-06-08
$53.00✓ $5.30/mg
40% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· peptidology.co· price updated today
$56.99✓ $5.70/mg
44% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· forgeperformanceco.com· price updated today
$60.00✓ $6.00/mg
47% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· verifiedpeptides.com· price updated today
$62.00✓ $6.20/mg
48% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· optimasupply.is· price updated today
$80.00−19%
$65.00✓ $6.50/mg
51% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· hydroresearchpeptides.com· price updated today
$80.00−19%
$65.00✓ $6.50/mg
51% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· texpeptide.com· price updated today
$60.00✓ $6.00/mg
47% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· simplepeptide.com· price updated today
$65.00✓ $6.50/mg
51% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· profoundaminos.com· price updated today
$65.00✓ $6.50/mg
51% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· eternalpeptides.com· price updated today
$80.00−6%
$74.99✓ $7.50/mg
57% more per mg vs cheapest
single-vial price — packs may be lower
vial · 5mg· moglabs.bio· price updated today
$38.00✓ $7.60/mg
58% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· primepeptides.co· price updated today
$75.00✓ $7.50/mg
57% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· realpeptides.co· price updated today
$100.00✓ $10.00/mg
68% more per mg vs cheapest
single-vial price — packs may be lower
vial · 5mg· arcanepeptides.com· price updated today
$45.00✓ $9.00/mg
64% more per mg vs cheapest
single-vial price — packs may be lower
vial · 5mg· ascensionpeptides.com· price updated today
$60.00−10%
$54.00✓ $10.80/mg
70% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· biolongevitylabs.com· price updated today
$164.97✓ $16.50/mg
81% more per mg vs cheapest
single-vial price — packs may be lower
vial · 10mg· alpha-peptides.com· price updated today
$31.32$3.13/mg
single-vial price — packs may be lower
vial · 10mg· orbitrexpeptide.is· price updated today
$59.99$6.00/mg
single-vial price — packs may be lower
vial · 10mg· peptidetech.is· ⚠ price updated 1mo ago
$54.99$5.50/mg
single-vial price — packs may be lower
34 vendors not shown — trust grade below C, or not enough verified COA data yet. We only list sources with a C grade or better.
Best price trend
Lowest $/mg for TB-500 · verified listings only
$3.20/mg
▼ 44% over 90d
Alpha Peptides has the lowest single-vial TB-500 price at $3.13/mg among 36 COA-verified vendors on Disclosed Labs. Bulk or multi-vial deals may be lower. That's 81% less per mg than the most expensive option.
What is the price range for TB-500?
Research-grade TB-500 ranges from $3.13/mg to $16.50/mg across 24 verified sources, a 81% spread per mg.
How are TB-500 prices verified on Disclosed Labs?
Every listed vendor holds a Grade C or better trust score, computed independently from lab Certificates of Analysis — not from payments or sponsorships. Prices are scraped and fact-checked daily. Vendors cannot pay to improve their ranking.
TB-500 is among peptides under FDA review; if added to the Category 1 (503A)list it would require a prescription. In April 2026 the FDA removed 12 peptides from Category 2, but removal does not place them on the Category 1 list or authorize compounding — they remain in a regulatory gray zone. The FDA's Pharmacy Compounding Advisory Committee is advisory and meets July 23–24, 2026 to review nominations and make recommendations to the FDA; the FDA issues any final rule later.
Check formulation: Lyophilized powder requires reconstitution before use. Pre-mixed solutions are more convenient but may have a shorter shelf life and higher prices.
Compare per-mg cost: Different strengths and quantities make direct price comparison difficult. Calculate the per-milligram cost to find the true best value.
Verify COAs: Look for vendors that publish per-batch Certificates of Analysis from named, accredited labs. Use the Full safety panel filter to require endotoxin, sterility, and heavy-metals testing on the current batch — not just HPLC purity.
Animal studies of full-length Tβ4 show accelerated dermal wound reepithelialization (Malinda et al., 1999, PMID 10469335), increased angiogenesis, improved cardiac function after ischemic injury via an ILK/Akt pathway (Bock-Marquette et al., Nature 2004, PMID 15565145), and corneal healing (Sosne & Kleinman review, 2015, PMID 26241398). The short Ac-LKKTETQ peptide sold as TB-500 was characterized analytically in the anti-doping literature as a substance with suspected doping potential (Esposito et al., 2012, PMID 22962027); controlled human efficacy trials of injected TB-500 do not exist. Full-length synthetic Tβ4 (RGN-259) has been evaluated in Phase II/III ophthalmic trials for dry eye disease and neurotrophic keratopathy with mixed results — one Phase III NK trial met healing endpoints, while a later European Phase III missed its primary endpoint. No clinically validated human injection dose exists for the short TB-500 peptide; all circulating dosing figures derive from vendor and forum protocols, not controlled trials.
This platform provides informational tools only, not medical advice.
Thymosin beta4 accelerates wound healing (Malinda et al., rat dermal wound model)
1999
Thymosin beta4 activates integrin-linked kinase and promotes cardiac cell migration, survival and cardiac repair (Bock-Marquette et al., Nature)
2004
Primary Mechanisms of Thymosin β4 Repair Activity in Dry Eye Disorders and Other Tissue Injuries (Sosne & Kleinman review)
Prices verified as of July 2026. Actual prices may vary. For research use only.
Single-vial list prices by default for a fair head-to-head — switch to Multi-vial / bulk for pack pricing. Estimates only; verify at vendor before purchase. For research use only. Not medical advice.
2015
Disclosed Labs