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.
Lowest Price
$34.72
Highest Price
$712.50
Average Price
$113.29
Potential Savings
93%
across 55 options
12 of 55 vendors are lab-verified for TB-500
We cross-check each vendor's Certificate of Analysis against the issuing lab's own verification portal — so “cheapest” isn't the only signal.
Best price trend
Lowest $/mg for TB-500 · last 45 days
$1.20/mg
▼ 76% vs 45d ago
Trust grade first, cheapest within grade
vial · 10mgglacieraminos.shop· price updated today
Lot TB10GA-02· tested 2026-04-19
$5.90/mg
80% more per mg
vial · 20mgionpeptide.com· price updated today
Lot 5--30-001· tested 2026-05-28
$4.45/mg
73% more per mg
vial · 10mgorosresearch.com· price updated today
Lot OR-LPTB10-326-B5· tested 2026-04-09
$6.50/mg
82% more per mg
vial · 100mgpeptide.partners· price updated today
Lot TB202601· tested 2026-01-14
$630.00−22%
$490.00$4.90/mg
76% more per mg
vial · 10mgpeptidology.co· price updated today
Lot 1673· tested 2026-04-21
$5.70/mg
79% more per mg
vial · 10mgngpeptide.com· price updated today
Lot TB20-5· tested 2026-05-10
$3.50/mg
66% more per mg
vial · 25mgskyepeptides.com· price updated today
Lot TB26-20-001· tested 2026-04-15
$5.16/mg
77% more per mg
vial · 10mgverifiedpeptides.com· price updated today
Lot TB042609101· tested 2026-05-13
$6.20/mg
81% more per mg
vial · 10mgbiolongevitylabs.com· price updated today
Lot 27-3-46148· tested 2026-05-04
$16.50/mg
93% more per mg
vial · 10mghydroresearchpeptides.com· price updated today
Lot HYDRO3L6MDGQ· tested 2025-11-20
$140.00−36%
$90.00$9.00/mg
87% more per mg
vial · 10mgsimplepeptide.com· price updated today
Lot TB-500-02032026-J· tested 2026-02-04
$6.50/mg
82% more per mg
vial · 5mgmoglabs.bio· price updated today
Lot TB002· tested 2026-05-24
$7.20/mg
83% more per mg
vial · 10mgprofoundaminos.com· price updated today
$5.90/mg
80% more per mg
vial · 5mgascensionpeptides.com· price updated today
$12.00/mg
90% more per mg
vial · 10mgprimepeptides.co· price updated today
Lot 4142026TB· tested 2026-05-26
$7.50/mg
84% more per mg
vial · 5mgarcanepeptides.com· price updated today
Lot TB002· tested 2026-05-24
$9.00/mg
87% more per mg
vial · 10mgtexpeptide.com· price updated today
Lot TB0001· tested 2025-10-01
$60.00−8%
$55.00$5.50/mg
78% more per mg
vial · 10mgforgeperformanceco.com· price updated today
$6.50/mg
82% more per mg
vial · 10mgcertified-pep.com· price updated today
Lot 260120TL103· tested 2026-01-30
$7.00/mg
83% more per mg
vial · 10mgpeptideplugs.com· price updated today
$5.50/mg
78% more per mg
vial · 10mgblankpeptides.com· price updated today
Lot 665394· tested 2026-04-06
$6.00/mg
80% more per mg
vial · 10mgpeptidetech.co· price updated 2d ago
Lot TB10-8795· tested 2025-11-21
$5.50/mg
78% more per mg
vial · 10mgezpeptides.com· price updated today
Lot EZP-TBF1004082026-04· tested 2026-04-17
$4.80/mg
75% more per mg
vial · 100mgreta-peptide.com· price updated today
$1.20/mg
vial · 100mglicensedpeptides.com· price updated today
$1044.56−44%
$584.95$5.85/mg
79% more per mg
vial · 10mgcernumbiosciences.com· price updated today
$13.00/mg
91% more per mg
vial · 10mgruo.bio· price updated today
$4.80/mg
75% more per mg
vial · 100mgbulkpeptides.com· price updated today
$2.80/mg
57% more per mg
vial · 50mgwellilabs.com· price updated 2d ago
$3.30/mg
64% more per mg
vial · 10mgalpha-peptides.com· price updated today
$49.99−31%
$34.72$3.47/mg
65% more per mg
vial · 10mgplatinumlionpeptides.com· price updated today
$60.00−25%
$44.99$4.50/mg
73% more per mg
vial · 10mgtruepeptidelabs.com· price updated yesterday
$4.50/mg
73% more per mg
vial · 10mgmodernresearchpeptides.net· price updated today
$4.70/mg
74% more per mg
vial · 10mgpeptira.com· price updated today
$4.90/mg
76% more per mg
vial · 10mgonedaycompounds.com· price updated today
$5.00/mg
76% more per mg
vial · 10mgs1research.net· price updated today
$80.00−38%
$50.00$5.00/mg
76% more per mg
vial · 10mglumipeptides.com· price updated today
$5.00/mg
76% more per mg
vial · 10mgsouthernaminos.com· price updated today
$69.00−25%
$51.75$5.17/mg
77% more per mg
vial · 10mgwellnesspeptides.io· price updated yesterday
$5.50/mg
78% more per mg
vial · 10mgmyoasislabs.com· price updated today
$5.70/mg
79% more per mg
vial · 100mgatomiklabz.com· price updated today
$5.85/mg
79% more per mg
vial · 10mgnovapeptidesupply.com· price updated today
$6.00/mg
80% more per mg
vial · 10mgpepvidalabs.com· price updated today
$6.40/mg
81% more per mg
vial · 10mgamc-essentials.com· price updated today
$6.50/mg
82% more per mg
vial · 10mgalphaomegapeptide.com· price updated today
$6.50/mg
82% more per mg
vial · 10mgsolutionpeptides.net· price updated yesterday
$6.50/mg
82% more per mg
vial · 10mgaminosequence.com· price updated today
$6.50/mg
82% more per mg
vial · 10mgfelixchem.is· price updated today
$7.00/mg
83% more per mg
vial · 10mgpolarispeptides.com· price updated today
$80.00−13%
$70.00$7.00/mg
83% more per mg
vial · 100mgnextechlaboratories.com· price updated today
$7.13/mg
83% more per mg
vial · 5mgignitepeptides.com· price updated today
$8.00/mg
85% more per mg
vial · 10mgyoursoma.com· price updated today
$8.90/mg
87% more per mg
vial · 10mgbiotechpeptides.com· price updated today
$12.40/mg
90% more per mg
vial · 10mgcorepeptides.com· price updated today
$14.00/mg
91% more per mg
vial · 10mggeneticpeptide.com· price updated today
$195.00−15%
$165.00$16.50/mg
93% more per mg
vial · 10mgpeptidesupplyco.com· price updated 2d ago
Lot PSCTB510001· tested 2026-02-10
$5.30/mg
77% more per mg
vial · 10mgpeptidecrafters.com· price updated 2d ago
$75.00−13%
$65.00$6.50/mg
82% more per mg
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. Every vendor on this page is verified for endotoxin testing — 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 June 2026. Actual prices may vary. For research use only.
Prices are estimates and may vary. For research use only. We may earn a commission on purchases through affiliate links. Not medical advice.
2015
Disclosed Labs