Best TB-500 suppliers: 42 shops ranked by score
TB-500 is listed by 42 of the suppliers we score, 105 listings between them once every size is counted. Ranked by editors' score, Licensed Peptides leads at 8.2 out of 10, asking $99.99 for 10 mg, no certificate on the product page; Ascension Peptides follows at 7.5. The cheapest 5 mg listing is $22.80 at Trident Peptide UK, which scores 3.1 and shows no certificate on the page; the typical price at that size is $48.49. 7 of the 23 shops carrying the 5 mg size put a certificate on the product page, and 12 of the 42 suppliers score 6.5 or better. This page answers which shop; the price page answers what it costs, size by size.
Disclosure: the people behind this site have a financial interest in Licensed Peptides, one of the suppliers ranked here. We scored it with the same formula we apply to every supplier and changed nothing on this page because of that connection.
| Rank | Supplier | 5 mg listing | Price | Certificate | |
|---|---|---|---|---|---|
| 1 | TB-500 (Thymosin Beta-4) 10mg - 10mg, 1 packno 5 mg listing; nearest is 10 mg | $99.99$10.00/mg | On another listing | Review Open | |
| 2 | Ascension Peptidesascensionpeptides.com 7.5 | TB-500 (5MG) | $54$10.80/mg | On the page | Review Open |
| 3 | TB-500 5mg | $44.95$8.99/mg | Not on the page | Review Open | |
| 4 | Thymosin Beta 4 (TB500) (5mg) | $60$12.00/mg | On the page | Review Open | |
| 5 | TB-500 (Thymosin Beta 4) - 5MG / 10MG - 5mg | $78$15.60/mg | On the page | Review Open | |
| 6 | TB-500 (Thymosin Beta-4) 10mgno 5 mg listing; nearest is 10 mg | $59.95$6.00/mg | On the page | Review Open | |
| 7 | TB-500 (10mg)no 5 mg listing; nearest is 10 mg | $164.97$16.50/mg | Not on the page | Review Open | |
| 8 | TB-500 (5mg) | $50$10.00/mg | On another listing | Review Open | |
| 9 | Sports Technology Labssportstechnologylabs.com 6.8 | TB-500 5 mg | $69.99$14.00/mg | On the page | Review Open |
| 10 | TB-500 – MG Amount: 10 MGno 5 mg listing; nearest is 10 mg | $31.32$3.13/mg | On the page | Review Open | |
| 11 | Alpha Labs Peptidesgoalphalabs.com 6.7 | TB-500 (10mg)no 5 mg listing; nearest is 10 mg | $34.99$3.50/mg | On the page | Review Open |
| 12 | Peptide Prospeptidepros.net 6.5 | TB-500 (Thymosin B4) 2mgno 5 mg listing; nearest is 2 mg | $37.25$18.63/mg | Not on the page | Review Open |
| 13 | TB4 10mg (10 vials/Kit)no 5 mg listing; nearest is 10 mg × 10 | $25.10$2.51/mg | Not on the page | Review Open | |
| 14 | TB-500no 5 mg listing; nearest is size not stated | $54.99 | On the page | Review Open | |
| 15 | TB-500 (Thymosin Beta-4) (5mg) | $72$14.40/mg | On the page | Review Open | |
| 16 | TB-500 (Thymosin Beta-4) 5mg | $38$7.60/mg | On the page | Review Open | |
| 17 | TB-500 Peptide (TB4) 10MGno 5 mg listing; nearest is 10 mg | $62$6.20/mg | On the page | Review Open | |
| 18 | TB-500 (Thymosin Beta-4) – Tb-500-thymosin-beta-4: 5mg 1 vial | $35.16$7.03/mg | Not on the page | Review Open | |
| 19 | TB-500 5mg (Thymosin Beta 4 Fragment) | $49.99$10.00/mg | Not on the page | Review Open | |
| 20 | TB-500 THYMOSIN BETA-4 PEPTIDE 2MG/5MG/10MG VIAL - 5 Milligrams Vial | $50.99$10.20/mg | On another listing | Review Open | |
| 21 | Prime Peptidesprimepeptides.co · FDA letter on file 5.9 | TB-500 (TB4) - 10mgno 5 mg listing; nearest is 10 mg | $65$6.50/mg | On the page | Review Open |
| 22 | Blue Sky Peptideblueskypeptide.com 5.7 | Thymosin Beta 4 (TB500) 5mg | $43.97$8.79/mg | Not on the page | Review Open |
| 23 | TB500 5mg | $38.09listed £29.99$7.62/mg | Not on the page | Review Open | |
| 24 | TB500 Peptide - Research-Grade Thymosin Beta-4 - 5mg | 10mg - 5mg | $39.99$8.00/mg | Not on the page | Review Open | |
| 25 | Thymosin Beta 4 5mg TB500 | $41.91listed £33$8.38/mg | On the page | Review Open | |
| 26 | TB-500 Thymosin Beta 4 5mg (USA) | $31.99$6.40/mg | Not on the page | Review Open | |
| 27 | Thymosin Beta-4 — Full-Length (43 aa; TB-500) 5mg | $59.99$12.00/mg | Not on the page | Review Open | |
| 28 | TB500 Peptide Vial – 5mg vial | $35.56listed £28$7.11/mg | Not on the page | Review Open | |
| 29 | American Research Pensamericanresearchpens.com 4.4 | TB-500 10 mgno 5 mg listing; nearest is 10 mg (pen) | $104.99$10.50/mg | Not on the page | Review Open |
| 30 | TB-500 (Thymosin Beta-4) (43 AA) – 10mgno 5 mg listing; nearest is 10 mg | $65$6.50/mg | On the page | Review Open | |
| 31 | Enhanced Peptidesenhancedpeptides.com 4.2 | Thymosin Beta 4 (TB500) - 5mg | $65$13.00/mg | Not on the page | Review Open |
| 32 | TB-500 5mg | Amino Asylum Research Peptide | $39.99$8.00/mg | Not on the page | Review Open | |
| 33 | TB-500 – Thymosin Beta-4 (10mg)no 5 mg listing; nearest is 10 mg | $60$6.00/mg | Not on the page | Review Open | |
| 34 | Thymosin Beta-4 (TB-500) 10mgno 5 mg listing; nearest is 10 mg | $99.99$10.00/mg | On the page | Review Open | |
| 35 | Trident Peptide UKtridentpeptide.com 3.1 | TB-500 5mg | $22.80listed £17.95$4.56/mg | Not on the page | Review Open |
| 36 | TB-500 (Thymosin Beta-4)no 5 mg listing; nearest is size not stated | $51.99 | Not on the page | Review Open | |
| 37 | Thymosin Beta 4 2mg (Buy 1 Get 1 Free)no 5 mg listing; nearest is 2 mg | $39.99$20.00/mg | Not on the page | Review Open | |
| 38 | TB-500 10mgno 5 mg listing; nearest is 10 mg | $70$7.00/mg | Not on the page | Review Open | |
| 39 | TB-500 Injectionno 5 mg listing; nearest is size not stated (other) | $125 | Not on the page | Review Open | |
| 40 | TB-500 | $25.99$5.20/mg | Not on the page | Review Open | |
| 41 | TB-500 (Thymosin Beta-4)(43 aa) - 10 mgno 5 mg listing; nearest is 10 mg | $69$6.90/mg | Not on the page | Review Open | |
| 42 | TB-500 (Thymosin Beta-4) - 5MG | $34$6.80/mg | Not on the page | Review Open |
The order is the editors' score, not the price, because the cheapest untested vial is not a bargain. The listing shown is each shop's 5 mg single-vial price, the size most shops carry; where a shop does not stock that size we show its nearest listing and say so. Prices were read during our October 2026 check, before coupons and shipping. Every listing is sold for laboratory research use only.
What it costs, and the pages next door
This page ranks the shops; the others compare the money.
Questions
Who is the best TB-500 supplier?
Licensed Peptides, on our formula: 8.2 out of 10, the highest score among the 42 shops that list it. Licensed Peptides names two accredited laboratories and keeps three separate document libraries, which puts it near the top of our index for paperwork. The score is the same one we give the shop everywhere on this site; nothing is reweighted for the peptide.
Who sells TB-500 cheapest at 5 mg?
Trident Peptide UK, at $22.80 for 5 mg against a typical $48.49. It scores 3.1, below the 6.5 we like to see before calling a low price a bargain. The price page lists every size and every shop.
Which TB-500 suppliers show a certificate on the product page?
18 of the 42: Licensed Peptides, Ascension Peptides, Paramount Peptides, Core Peptides, Koi Peptides, Evolve Peptides, Sports Technology Labs and Alpha Peptides and 10 more. A certificate on the page is the least a shop can do; a lot number on it that matches the vial is the thing to check, and our lab-report guide shows how in five minutes.