TB-500 (thymosin beta-4): where to get lab-tested lots
Last updated Oct 8, 2026 · Paramount Peptides prices checked Oct 7, 2026 · 27 tested lots on file
Affiliate disclosure: the shop buttons are affiliate links and SKYLER is Skyler Humphrey's affiliate code. We earn a commission at no extra cost to you. Full disclosure
TB-500 (thymosin beta-4) is available from both of our tested suppliers. Each section lists that supplier's products with the latest certificate for each; every lot links to its own page with the full results and the lab's verification link.
TB-500 (thymosin beta-4) from Paramount Peptides
22 tested lots on file · labs on these certificates: Accumark Labs, Janoshik
| Product | Vial | Price | Latest lot | Tested lots | |
|---|---|---|---|---|---|
| Thymosin Beta 4 (TB500) (5mg) | 5 mg | $60.00 listed price, checked Oct 7, 2026 | TB45N030126 99.78% · Apr 17, 2026 · Janoshik | 7 | Shop ↗ |
| Thymosin Beta 4 (TB500) (10mg) | 10 mg | $68.00 listed price, checked Oct 7, 2026 | 26VTBC164 99.12% · Jul 8, 2026 · Accumark Labs | 11 | Shop ↗ |
| Thymosin Beta 4 (TB500) (20mg) | 20 mg | $125.00 listed price, checked Oct 7, 2026 | 26VTBC110 99.39% · May 15, 2026 · Accumark Labs | 4 | Shop ↗ |
Visit Paramount Peptides ↗ Paid link · code SKYLER = 10% off (offer as of Oct 7, 2026)
TB-500 (thymosin beta-4) from Peptira
5 tested lots on file · labs on these certificates: Freedom Diagnostics, Janoshik
| Product | Vial | Price | Latest lot | Tested lots | |
|---|---|---|---|---|---|
| TB-500 Vial 10 mg | 10 mg | See site prices are shown after research-account sign-in | TB5-10-005 99.25% · Apr 16, 2026 · Freedom Diagnostics | 5 | Shop ↗ |
Visit Peptira ↗ Paid link · code SKYLER = 10% off (offer as of Oct 7, 2026)
Prices are the listed price on the supplier's public product page on Oct 7, 2026, before any code or shipping, and they change often. "See site" means the price isn't public or we couldn't confirm it.
Offer as of Oct 7, 2026. SKYLER is Skyler Humphrey's affiliate code: we earn a commission on orders that use it, at no extra cost to you. Code details
Doses reported in published studies: TB-500 (thymosin beta-4): doses reported in published research (literature summary, not advice).
Organ systems in published research: Brain & nervous system, Heart & blood vessels, Liver, Skin, Bone & cartilage, Eye, Lungs & airways.
More on the compound itself: TB-500 (thymosin beta-4) research profile (identity, research record and regulatory status). Every lot is listed in the COA lookup.