TB-500 price per mg
TB-500 for sale at 50 stores (95 listings), prices checked Nov 9, 2026. Lowest $1.03/mg, median $4.51/mg. Median for kits (5+ vials) $1.60/mg, for single vials $7.02/mg.
Also sold as: TB4, Thymosin beta-4, Thymosin beta-4 acetate. These are store labels, not a finding about what the vials hold; the FDA describes TB-500 as a fragment of thymosin beta-4.
A synthetic peptide sold under a common name rather than an official drug name. The FDA describes TB-500 as an acetylated fragment (amino acids 17 to 23) of thymosin beta-4, a naturally occurring 43-amino-acid protein. Many vendors label it as thymosin beta-4 itself, and the FDA has found different substances sold under the name, so check the listing. Products labelled as the 17-23 fragment, or whose own page describes it (Ac-LKKTETQ), are left out here. It is not an approved medicine in the US, EU or Canada. Status as of September 2026; status of every peptide.
Follow TB-500 price drops and restocks: add the TB-500 price-drop and restock feed to a feed reader app (Atom format: drops of 3% or more and restocks, updated twice a day, no sign-up). Opened in a browser, the feed shows as code or downloads as a file.
Best TB-500 prices
Picks come from vendors with Finnrick lab tests and leave out listings the store marks out of stock; a listing that doesn't state its stock can be picked. The table below has every listing. A lab score describes the purity and dose of past samples. It doesn't mean a product is safe or suitable for any use.
TB-500 price by vial size
| Size | Stores | Cheapest single vial | Cheapest kit (5+ vials) | |||||
|---|---|---|---|---|---|---|---|---|
| Price | $/mg | Store | Price | Per vial | $/mg | Store | ||
| 2 mg | 5 stores | 1 vial $23.96 | $11.98/mg | Swiss Chems | 10 vials $28.0010 vials | $2.80/vial | $1.40/mg | peptideswholesaleusa.com |
| 5 mg | 28 stores | 1 vial $22.62 | $4.52/mg | peptology.pl | 10 vials* $53.0010 vials* | $5.30/vial | $1.06/mg | BiochemAPI |
| 10 mg | 43 stores | 1 vial $37.87 | $3.79/mg | peptology.pl | 10 vials $103.4010 vials | $10.34/vial | $1.03/mg | peptideswholesaleusa.com |
One row per vial size with a listing that can be ordered: likely listing errors, prices far above other stores and listings the store marks out of stock are left out (a listing that doesn't state its stock counts). Stores: how many sell that size in any pack. A kit's price is for the whole pack. * Count assumed: the listing gives no vial count, so it is counted as 10 because it says "kit" or the store sells only 10-vial kits.
Wholesale and bulk: 10-vial kits. 25 stores sell TB-500 in kits of 5 or more vials, 24 of them in 10-vial kits. Lowest price per mg in a kit: 10 x 10 mg for $103.40 at peptideswholesaleusa.com ($10.34 a vial, $1.03/mg).
Ships to Canada: 17 of these 50 stores (their own shipping pages say Canada or worldwide). Ships from the US: 29 stores (a US warehouse or origin).
The "same listings" line follows only listings present on consecutive days, so stores joining or leaving don't move it; it ends at today's median.
Which stores list TB-500: 50, cheapest per mg first
#: rank by price per mg among the listings shown; a sort by another column keeps each listing's rank. Score: Finnrick's TB-500 score at that vendor and its number of tests. "overall": Finnrick has no TB-500 score there, so the vendor's overall score is shown. vs median: 0.50x is half the median price per mg. Likely listing error: far below the normal range, or out of line with the store's own sizes. Size unclear: the listing's size is not stated, or its own page or store data gives a different one; treated like a likely listing error. Based in (Ships from column): the store's pages don't say where it ships from, so this is the location on the vendor's Finnrick profile. The "Ships from" filter counts it unless it ends in a question mark. * Count assumed: the listing gives no vial count, so it is counted as 10 because it says "kit" or the store sells only 10-vial kits. Sale, was: the store's own listing marks the price as reduced; "was" is its regular price. Shown only for 5% to 50% off, when the regular price per mg is no higher than the highest price per mg any store here asks for that peptide and pack type, this store included. A store that marks over 4 in 5 of its listings reduced gets no tag, and nor does a group of 5 or more single vials, or of packs, with over 4 in 5 marked (exact rule).
| # rank by price per mg | Vendor | Score | Size | Pack | Price | Per vial | $/mg | vs median | Stock | Ships from | Listing |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | peptideswholesaleusa.com | no score | 10 mg | 10 vials | Pack price $103.40 | $10.34 | $1.03 per mg | 0.23x | In stocklisting ↗ | Ships from US | TB-500 (thymosin beta-4 acetate) 10mg x… |
| 2 | intlpeptides.com | no score | 10 mg | 10 vials | Pack price $103.40 | $10.34 | $1.03 per mg | 0.23x | In stocklisting ↗ | Ships from US | TB-500 (thymosin beta-4 acetate) 10mg x… |
| 3 | peptideswholesale.ca | no score | 10 mg | 10 vials | Pack price $104.39 | $10.44 | $1.04 per mg | 0.23x | In stocklisting ↗ | Ships from Canada | TB-500 (thymosin beta-4 acetate) 10mg x… |
| 4 | BiochemAPIbuy.biochemapi.com | 73%overall | 5 mg | 10 vials (count assumed) | Pack price $53.00 | $5.30 | $1.06 per mg | 0.23x | In stocklisting ↗ | Ships from China or Hong Kong | TB500 5mg inhouse test @99.19% |
| 5 | apspeptide.com | no score | 10 mg | 10 vials | Pack price $110.00 | $11.00 | $1.10 per mg | 0.24x | In stocklisting ↗ | Not stated | TB500-10mg 10 Vials |
| 6 | Baohua Dongnuo (BHD)baohuadongnuo.com | 82%overall | 10 mg | 10 vials | Pack price $110.00 | $11.00 | $1.10 per mg | 0.24x | In stocklisting ↗ | Based in China | TB10 TB500 10mg * 10 vials |
| 7 | Barnbarnpeptides.com | 79%overall | 10 mg | 10 vials | Pack price $110.00 | $11.00 | $1.10 per mg | 0.24x | In stockread Oct 27, 2026listing ↗ | Ships from US, CA and AU | TB10 10MG × 10 VIALS |
| 8 | BiochemAPIbuy.biochemapi.com | 73%overall | 10 mg | 10 vials | Pack price $115.00 | $11.50 | $1.15 per mg | 0.25x | In stocklisting ↗ | Ships from China or Hong Kong | TB500 / 10mg*10vials |
| 9 | Shanghai Wibson Biotechnology WBSjinjier.wbspeptide.com | 73%overall | 10 mg | 10 vials | Pack price $128.00 | $12.80 | $1.28 per mg | 0.28x | In stocklisting ↗ | Ships from China | TB500 10mg*10vials (China warehouse) |
| 10 | Shanghai ERP Peptideerppeptide.shop | 41%6 tests | 10 mg | 10 vials | Pack price $129.00 | $12.90 | $1.29 per mg | 0.29x | In stocklisting ↗ | Ships from China | TB500 10mg*10vials (China warehouse) |
| 11 | Utherutherpeptide.com | 39%4 tests | 10 mg | 10 vials | Pack price $130.00 | $13.00 | $1.30 per mg | 0.29x | In stocklisting ↗ | Ships from US stock and Asian stock | TB-500 10mg (10 Vials / Kit) |
| 12 | Bfflist AMObffpeptides.com | 72%overall | 10 mg | 10 vials | Pack price $135.00 | $13.50 | $1.35 per mg | 0.30x | In stockread Nov 2, 2026listing ↗ | Not stated | TB-500 (TB500) TB-10 10mg (kit of 10 vi… |
| 13 | Shanghai ERP Peptideerppeptide.shop | 41%6 tests | 10 mg | 10 vials | Pack price $139.00 | $13.90 | $1.39 per mg | 0.31x | In stocklisting ↗ | Ships from US | TB500 10mg*10vials (warehouse A (Portla… |
| 14 | linuxpeptides.com | no score | 10 mg | 10 vials | Pack price $139.59 | $13.96 | $1.40 per mg | 0.31x | In stocklisting ↗ | Ships from US | TB-500 (thymosin beta-4 acetate) 10mg x… |
| 15 | lotpeptides.com | no score | 10 mg | 10 vials | Pack price $139.59 | $13.96 | $1.40 per mg | 0.31x | In stocklisting ↗ | Ships from US | TB-500 thymosin beta-4 acetate 10mg x 1… |
| 16 | peptideswholesaleusa.com | no score | 2 mg | 10 vials | Pack price $28.00 | $2.80 | $1.40 per mg | 0.31x | Not statedlisting ↗ | Ships from US | TB-500 (thymosin beta-4 acetate) 2mg x… |
| 17 | intlpeptides.com | no score | 2 mg | 10 vials | Pack price $28.00 | $2.80 | $1.40 per mg | 0.31x | Outlisting ↗ | Ships from US | TB-500 (thymosin beta-4 acetate) 2mg x… |
| 18 | Shanghai Wibson Biotechnology WBSjinjier.wbspeptide.com | 73%overall | 10 mg | 10 vials | Pack price $140.00 | $14.00 | $1.40 per mg | 0.31x | In stocklisting ↗ | Ships from US | TB500 10mg *10 vials (US warehouse 01) |
| 19 | peptideswholesale.ca | no score | 2 mg | 10 vials | Pack price $28.27 | $2.83 | $1.41 per mg | 0.31x | Not statedlisting ↗ | Ships from Canada | TB-500 (thymosin beta-4 acetate) 2mg x… |
| 20 | peptideswholesaleusa.com | no score | 5 mg | 10 vials | Pack price $71.40 | $7.14 | $1.43 per mg | 0.32x | In stocklisting ↗ | Ships from US | TB-500 (thymosin beta-4 acetate) 5mg x… |
| 21 | intlpeptides.com | no score | 5 mg | 10 vials | Pack price $71.40 | $7.14 | $1.43 per mg | 0.32x | In stocklisting ↗ | Ships from US | TB-500 (thymosin beta-4 acetate) 5mg x… |
| 22 | peptideswholesale.ca | no score | 5 mg | 10 vials | Pack price $72.08 | $7.21 | $1.44 per mg | 0.32x | In stocklisting ↗ | Ships from Canada | TB-500 (thymosin beta-4 acetate) 5mg x… |
| 23 | Lipeptideslipeptide.com | 34%4 tests | 10 mg | 10 vials | Pack price $145.00 | $14.50 | $1.45 per mg | 0.32x | In stocklisting ↗ | Based in China | TB500 10mg*10vials |
| 24 | Shanghai Wibson Biotechnology WBSjinjier.wbspeptide.com | 73%overall | 5 mg | 10 vials | Pack price $73.00 | $7.30 | $1.46 per mg | 0.32x | In stocklisting ↗ | Ships from China | TB500 5mg*10vials (China warehouse) |
| 25 | Shanghai ERP Peptideerppeptide.shop | 41%6 tests | 5 mg | 10 vials | Pack price $74.00 | $7.40 | $1.48 per mg | 0.33x | In stocklisting ↗ | Ships from China | TB500 5mg*10vials (China warehouse) |
| 26 | BiochemAPIbuy.biochemapi.com | 73%overall | 2 mg | 10 vials | Pack price $30.00 | $3.00 | $1.50 per mg | 0.33x | Outlisting ↗ | Ships from China or Hong Kong | TB500 / 2mg*10vials |
| 27 | Baohua Dongnuo (BHD)baohuadongnuo.com | 82%overall | 5 mg | 10 vials | Pack price $80.00 | $8.00 | $1.60 per mg | 0.35x | In stocklisting ↗ | Based in China | TB5 TB500 5mg * 10 vials |
| 28 | Aavant Researchaavantpeptides.com | 85%overall | 10 mg | 10 vials | Pack price $160.00 | $16.00 | $1.60 per mg | 0.35x | In stockread Nov 2, 2026listing ↗ | Based in US | TB-500 10mg (kit of 10 vials) |
| 29 | Shanghai ERP Peptideerppeptide.shop | 41%6 tests | 5 mg | 10 vials | Pack price $84.00 | $8.40 | $1.68 per mg | 0.37x | In stocklisting ↗ | Ships from US | TB500 5mg*10vials (warehouse A (Portlan… |
| 30 | Shanghai Wibson Biotechnology WBSjinjier.wbspeptide.com | 73%overall | 5 mg | 10 vials | Pack price $85.00 | $8.50 | $1.70 per mg | 0.38x | In stocklisting ↗ | Ships from US | TB500 5mg*10vials (US warehouse 01) |
| 31 | Lipeptideslipeptide.com | 34%4 tests | 5 mg | 10 vials | Pack price $85.00 | $8.50 | $1.70 per mg | 0.38x | In stocklisting ↗ | Based in China | TB500 5mg*10vials |
| 32 | hkpeptidesworldwide.com | no score | 5 mg | 10 vials (count assumed) | Pack price $89.00 | $8.90 | $1.78 per mg | 0.39x | In stocklisting ↗ | Ships from US | TB-500 5 mg Thymosin Beta Research Pept… |
| 33 | Aavant Researchaavantpeptides.com | 85%overall | 5 mg | 10 vials | Pack price $90.00 | $9.00 | $1.80 per mg | 0.40x | In stockread Nov 2, 2026listing ↗ | Based in US | TB-500 5mg (kit of 10 vials) |
| 34 | lilipeptides.com | no score | 10 mg | 10 vials | Pack price $183.00 | $18.30 | $1.83 per mg | 0.41x | In stockread Oct 27, 2026listing ↗ | Not stated | TB-500 (Thymosin Beta 4 Acetate) / 10mg… |
| 35 | linuxpeptides.com | no score | 5 mg | 10 vials | Pack price $96.39 | $9.64 | $1.93 per mg | 0.43x | In stocklisting ↗ | Ships from US | TB-500 (thymosin beta-4 acetate) 5mg x… |
| 36 | lotpeptides.com | no score | 5 mg | 10 vials | Pack price $96.39 | $9.64 | $1.93 per mg | 0.43x | In stocklisting ↗ | Ships from US | TB-500 thymosin beta-4 acetate 5mg x 10… |
| 37 | Bulk Peptide Wholesalebulkpeptidewholesale.com | 69.7%overall | 10 mg | 10 vials | Pack price $200.00 | $20.00 | $2.00 per mg | 0.44x | In stocklisting ↗ | Not stated | TB-500 10MG (10 vials) |
| 38 | Bfflist AMObffpeptides.com | 72%overall | 5 mg | 10 vials | Pack price $100.00 | $10.00 | $2.00 per mg | 0.44x | In stockread Nov 2, 2026listing ↗ | Not stated | TB-500 (TB500) TB-5 5mg (kit of 10 vial… |
| 39 | Chimera Peptideschimera-peptides.com | 87%overall | 10 mg | 10 vials | Pack price $204.00 | $20.40 | $2.04 per mg | 0.45x | In stocklisting ↗ | Ships from US | TB500 (Thymosin Beta-4) / 10mg x 10vials |
| 40 | lilipeptides.com | no score | 5 mg | 10 vials | Pack price $105.00 | $10.50 | $2.10 per mg | 0.47x | In stockread Oct 27, 2026listing ↗ | Not stated | TB-500 (Thymosin Beta 4 Acetate) / 5mg*… |
| 41 | Nexaphnexaph.com | 37%6 tests | 10 mg | 10 vials | Pack price $251.00 | $25.10 | $2.51 per mg | 0.56x | In stocklisting ↗ | Ships from US | TB4 10mg (10 vials/Kit) |
| 42 | Chimera Peptideschimera-peptides.com | 87%overall | 5 mg | 10 vials | Pack price $130.00 | $13.00 | $2.60 per mg | 0.58x | In stocklisting ↗ | Ships from US | TB500 (Thymosin Beta-4) / 5mg x 10vials |
| 43 | Bulk Peptide Supplybulkpeptidesupply.com | 72%overall | 10 mg | 10 vials | Pack price $275.00 | $27.50 | $2.75 per mg | 0.61x | In stocklisting ↗ | Based in US, OK | TB-500 10 mg (10 vials) |
| 44 | peptology.pl | no score | 10 mg | 1 vial | Pack price $37.87 | $37.87 | $3.79 per mg | 0.84x | In stockread Nov 6, 2026listing ↗ | Ships from EU | TB500 5 mg/10 mg - Wysoce skuteczny pep… |
| 45 | Swiss Chemsswisschems.is | 48%overall | 10 mg | 1 vial | Pack price $42.36 sale, was $63.98 | $42.36 | $4.24 per mg | 0.94x | In stocklisting ↗ | Ships from US | TB-500 (Thymosin Beta-4) / 10mg 1 vial |
| 46 | Swiss Chemsswisschems.is | 48%overall | 10 mg | 10 vials | Pack price $426.30 sale, was $575.82 | $42.63 | $4.26 per mg | 0.94x | In stocklisting ↗ | Ships from US | TB-500 (Thymosin Beta-4) / 10mg 10 vials |
| 47 | warbornpeptides.is | no score | 10 mg | 10 vials | Pack price $432.87 | $43.29 | $4.33 per mg | 0.96x | In stocklisting ↗ | Not stated | TB-500 10mg - Kit |
| 48 | rebirthlabs.org | no score | 10 mg | 1 vial | Pack price $44.99 | $44.99 | $4.50 per mg | 1.00x | In stocklisting ↗ | Ships from US | TB-500 / 10mg |
| 49 | onyxresearch.shop | no score | 10 mg | 1 vial | Pack price $45.00 | $45.00 | $4.50 per mg | 1.00x | Outlisting ↗ | Not stated | TB500 10mg |
| 50 | peptology.pl | no score | 5 mg | 1 vial | Pack price $22.62 | $22.62 | $4.52 per mg | 1.00x | In stockread Nov 6, 2026listing ↗ | Ships from EU | TB500 5 mg/10 mg - Wysoce skuteczny pep… |
| 51 | Chimera Peptideschimera-peptides.com | 87%overall | 2 mg | 10 vials | Pack price $95.00 | $9.50 | $4.75 per mg | 1.05x | In stocklisting ↗ | Ships from US | TB500 (Thymosin Beta-4) / 2mg x 10vials |
| 52 | onyxresearch.shop | no score | 10 mg | 10 vials | Pack price $475.00 | $47.50 | $4.75 per mg | 1.05x | Outlisting ↗ | Not stated | TB500 10mg - Box of 10 |
| 53 | Peptide Partnerspeptide.partners | 33%13 tests | 10 mg | 10 vials | Pack price $490.00 | $49.00 | $4.90 per mg | 1.09x | In stocklisting ↗ | Not stated | TB-500 (TB4, 10mg vials) / 100 mg |
| 54 | Orbitrex Peptides fake domains reported about Orbitrex Peptides: Finnrick's note, quoted on the alerts pageorbitrexpeptide.is | 34%1 test | 10 mg | 1 vial | Pack price $49.99 | $49.99 | $5.00 per mg | 1.11x | In stocklisting ↗ | Ships from US | TB-500 10mg |
| 55 | neurolabsresearch.com | no score | 10 mg | 1 vial | Pack price $54.17 | $54.17 | $5.42 per mg | 1.20x | In stocklisting ↗ | Ships from US | TB-500 (10MG) |
| 56 | oxygenpharmcanada.is | no score | 10 mg | 1 vial | Pack price $56.87 | $56.87 | $5.69 per mg | 1.26x | In stocklisting ↗ | Ships from Canada | TB500 10Mg |
| 57 | Oasis Peptidesmyoasislabs.com | 58%overall | 10 mg | 1 vial | Pack price $57.00 | $57.00 | $5.70 per mg | 1.26x | In stocklisting ↗ | Ships from US | TB-500 10mg |
| 58 | Peptide Partnerspeptide.partners | 33%13 tests | 10 mg | 5 vials | Pack price $290.00 | $58.00 | $5.80 per mg | 1.29x | In stocklisting ↗ | Not stated | TB-500 (TB4, 10mg vials) / 50 mg |
| 59 | imperialpeptides.co.uk | no score | 5 mg | 1 vial | Pack price $29.43 | $29.43 | $5.89 per mg | 1.30x | In stockread Nov 4, 2026listing ↗ | Ships from UK | TB-500 5mg |
| 60 | warbornpeptides.is | no score | 10 mg | 1 vial | Pack price $61.84 | $61.84 | $6.18 per mg | 1.37x | In stocklisting ↗ | Not stated | TB-500 10mg |
| 61 | Verified Peptidesverifiedpeptides.com | 62%overall | 10 mg | 1 vial | Pack price $62.00 | $62.00 | $6.20 per mg | 1.37x | In stocklisting ↗ | Ships from US | Thymosin Beta-4 |
| 62 | oxygenpharmcanada.is | no score | 5 mg | 1 vial | Pack price $31.99 | $31.99 | $6.40 per mg | 1.42x | In stocklisting ↗ | Ships from Canada | TB-500 (5mg) |
| 63 | biogenix.is | no score | 10 mg | 1 vial | Pack price $63.98 | $63.98 | $6.40 per mg | 1.42x | In stocklisting ↗ | Not stated | TB-500 10mg |
| 64 | Elite Research USAeliteresearchlab.com | 59%overall | 10 mg | 1 vial | Pack price $64.99 | $64.99 | $6.50 per mg | 1.44x | In stocklisting ↗ | Ships from US | TB-500 10mg Research Peptide |
| 65 | tydespeptidesstore.com | no score | 10 mg | 1 vial | Pack price $65.00 | $65.00 | $6.50 per mg | 1.44x | In stocklisting ↗ | Ships from US | TB-500 (Thymosin Beta 4) 10 mg |
| 66 | Peptide Partnerspeptide.partners | 33%13 tests | 10 mg | 2 vials | Pack price $130.00 | $65.00 | $6.50 per mg | 1.44x | In stocklisting ↗ | Not stated | TB-500 (TB4, 10mg vials) / 20 mg |
| 67 | Paradigm Peptide fake domains reported about Paradigm Peptide: Finnrick's note, quoted on the alerts pageparadigm-peptide.com | 85%overall | 10 mg | 1 vial | Pack price $65.00 | $65.00 | $6.50 per mgsize unclear: the title says 10 mg; the product URL says 5 mg (read Sep 25, 2026). That day the store's titles on several products gave a larger size than their URLs and vial images. This listing's vial image was not recorded | 1.44x | In stocklisting ↗ | Ships from US | Tb-500 10mg |
| 68 | exobutiken.com | no score | 10 mg | 1 vial | Pack price $65.82 | $65.82 | $6.58 per mg | 1.46x | In stocklisting ↗ | Ships from Sweden | TB-500 10mg |
| 69 | Peptides For Salepeptidesforsale.net | 44%overall | 5 mg | 1 vial | Pack price $34.99 | $34.99 | $7.00 per mg | 1.55x | In stockread Oct 29, 2026listing ↗ | Based in US, TN | Thymosin Beta 4 (TB500) 5mg |
| 70 | maresearchchems.net | no score | 10 mg | 1 vial | Pack price $69.99 | $69.99 | $7.00 per mg | 1.55x | In stocklisting ↗ | Not stated | TB-500 (10 mg) |
| 71 | Swiss Chemsswisschems.is | 48%overall | 5 mg | 1 vial | Pack price $35.16 sale, was $38.95 | $35.16 | $7.03 per mg | 1.56x | In stocklisting ↗ | Ships from US | TB-500 (Thymosin Beta-4) / 5mg 1 vial |
| 72 | Swiss Chemsswisschems.is | 48%overall | 5 mg | 10 vials | Pack price $351.60 sale, was $389.50 | $35.16 | $7.03 per mg | 1.56x | In stocklisting ↗ | Ships from US | TB-500 (Thymosin Beta-4) / 5mg 10 vials |
| 73 | biogenix.is | no score | 5 mg | 1 vial | Pack price $35.55 | $35.55 | $7.11 per mg | 1.58x | In stocklisting ↗ | Not stated | TB-500 5mg |
| 74 | Nuscience Peptidesnusciencepeptides.com | 61%overall | 10 mg | 1 vial | Pack price $74.99 | $74.99 | $7.50 per mg | 1.66x | In stocklisting ↗ | Ships from US | TB500 Peptide - Research-Grade Thymosin… |
| 75 | PurePeptidespurepeptides.bio | 66%overall | 10 mg | 1 vial | Pack price $75.00 | $75.00 | $7.50 per mg | 1.66x | In stocklisting ↗ | Ships from US | Thymosin Beta 4 10MG |
| 76 | aminoasylumofficial.com | no score | 5 mg | 1 vial | Pack price $39.99 | $39.99 | $8.00 per mg | 1.77x | In stocklisting ↗ | Ships from US | TB-500 5mg | Amino Asylum Research Pept… |
| 77 | Nuscience Peptidesnusciencepeptides.com | 61%overall | 5 mg | 1 vial | Pack price $39.99 | $39.99 | $8.00 per mg | 1.77x | In stocklisting ↗ | Ships from US | TB500 Peptide - Research-Grade Thymosin… |
| 78 | Pure Tested Peptidespuretestedpeptides.com | 44%overall | 10 mg | 1 vial | Pack price $79.99 sale, was $89.99 | $79.99 | $8.00 per mg | 1.77x | In stocklisting ↗ | Ships from US | TB 500 10mg Peptide TB-500 |
| 79 | Astro Peptides service complaints about Astro Peptides: Finnrick's note, quoted on the alerts pageastropeptidesusa.com | 48%overall | 10 mg | 16 vials | Pack price $1,296.00 | $81.00 | $8.10 per mg | 1.80x | In stocklisting ↗ | Based in US | TB-500 10 mg, 16-Pack (Bundle) |
| 80 | Suaway Lab Researchsuaway.com | 67%overall | 10 mg | 1 vial | Pack price $88.20 | $88.20 | $8.82 per mg | 1.95x | In stocklisting ↗ | Based in Luxembourg | THYMOSIN BETA-4 (43aa) - 10mg |
| 81 | europa-peptide.de | no score | 5 mg | 1 vial | Pack price $44.55 | $44.55 | $8.91 per mg | 1.97x | In stocklisting ↗ | Ships from EU | TB500 / 5mg |
| 82 | Platinum Cryoplatinumpeptides.com | 63%overall | 5 mg | 1 vial | Pack price $44.95 | $44.95 | $8.99 per mg | 1.99x | In stocklisting ↗ | Ships from US | TB-500 / 5MG |
| 83 | Platinum Cryoplatinumpeptides.com | 63%overall | 10 mg | 1 vial | Pack price $89.95 | $89.95 | $9.00 per mg | 1.99x | In stocklisting ↗ | Ships from US | TB-500 / 10MG |
| 84 | Astro Peptides service complaints about Astro Peptides: Finnrick's note, quoted on the alerts pageastropeptidesusa.com | 48%overall | 10 mg | 8 vials | Pack price $720.00 | $90.00 | $9.00 per mg | 1.99x | In stocklisting ↗ | Based in US | TB-500 10 mg, 8-Pack (Bundle) |
| 85 | Astro Peptides service complaints about Astro Peptides: Finnrick's note, quoted on the alerts pageastropeptidesusa.com | 48%overall | 5 mg | 16 vials | Pack price $720.00 | $45.00 | $9.00 per mg | 1.99x | In stocklisting ↗ | Based in US | TB-500 5 mg, 16-Pack (Bundle) |
| 86 | Astro Peptides service complaints about Astro Peptides: Finnrick's note, quoted on the alerts pageastropeptidesusa.com | 48%overall | 10 mg | 1 vial | Pack price $90.00 | $90.00 | $9.00 per mg | 1.99x | In stocklisting ↗ | Based in US | TB500 5/10 mg / 10 mg |
| 87 | maresearchchems.net | no score | 5 mg | 1 vial | Pack price $46.99 | $46.99 | $9.40 per mg | 2.08x | In stocklisting ↗ | Not stated | TB-500 (5 mg) |
| 88 | Astro Peptides service complaints about Astro Peptides: Finnrick's note, quoted on the alerts pageastropeptidesusa.com | 48%overall | 5 mg | 8 vials | Pack price $400.00 | $50.00 | $10.00 per mg | 2.22x | In stocklisting ↗ | Based in US | TB-500 5 mg, 8-Pack (Bundle) |
| 89 | Astro Peptides service complaints about Astro Peptides: Finnrick's note, quoted on the alerts pageastropeptidesusa.com | 48%overall | 5 mg | 1 vial | Pack price $50.00 | $50.00 | $10.00 per mg | 2.22x | In stocklisting ↗ | Based in US | TB500 5/10 mg / 5 mg |
| 90 | Swiss Chemsswisschems.is | 48%overall | 2 mg | 1 vial | Pack price $23.96 sale, was $29.95 | $23.96 | $11.98 per mg | 2.66x | In stocklisting ↗ | Ships from US | TB-500 (Thymosin Beta-4) / 2mg 1 vial |
| 91 | Swiss Chemsswisschems.is | 48%overall | 2 mg | 10 vials | Pack price $269.55 | $26.96 | $13.48 per mg | 2.99x | Outlisting ↗ | Ships from US | TB-500 (Thymosin Beta-4) / 2mg 10 vials |
| 92 | Precision Peptide Coprecisionpeptidesusa.com | 69%overall | 10 mg | 1 vial | Pack price $137.99 | $137.99 | $13.80 per mg | 3.06x | In stocklisting ↗ | Ships from US | Thymosin Beta 4 (TB-500) / 10mg |
| 93 | M-Peptidesmpeptides.com | 74%overall | 10 mg | 1 vial | Pack price $141.00 | $141.00 | $14.10 per mg | 3.12x | In stocklisting ↗ | Not stated | Thymosin Beta 4 (TB500) / 10mg |
| 94 | M-Peptidesmpeptides.com | 74%overall | 5 mg | 1 vial | Pack price $76.00 | $76.00 | $15.20 per mg | 3.37x | In stocklisting ↗ | Not stated | Thymosin Beta 4 (TB500) / 5mg |
| 95 | Peptide Shoppeptide-shop.com | no score | 2 mg | 1 vial | Pack price $43.54 | $43.54 | $21.77 per mg | 4.83x | In stocklisting ↗ | Ships from Russia | TB-500 2mg (peptide for tissue regenera… |
Showing each store's cheapest matching listing. Untick "Best per store" to see every size and pack.
Vendors with a Finnrick TB-500 score
| Vendor | TB-500 score | Tests | Overall | Listings here |
|---|---|---|---|---|
| Yiwu Aozuo | 51% | 6 | 73% | none |
| Yimei | 46% | 7 | 72% | none |
| HK Peptides | 43% | 10 | 74% | none |
| HXNet | 43% | 5 | 72% | none |
| NuLife Peptides | 43% | 2 | 61% | none |
| Shanghai ERP Peptide | 41% | 6 | 73% | 4 |
| Peptide Crafters | 40% | 3 | 60% | none |
| Xian Yihang Technology | 39% | 4 | 66% | none |
| Uther | 39% | 4 | 65% | 1 |
| Zenith Jove (ZJ) | 39% | 4 | 69% | none |
| Shanxi Qianyecao (QYC) | 39% | 4 | 59.9% | none |
| Nexaph | 37% | 6 | 59% | 1 |
| Reta-Peptide | 37% | 13 | 67% | none |
| SRY Labs | 36% | 8 | 61% | none |
| ZLZ Peptide | 36% | 6 | 72% | none |
| Shanghai Sigma Audley (SSA) fake domains reported about Shanghai Sigma Audley (SSA): Finnrick's note, quoted on the alerts page | 36% | 3 | 64% | none |
| Lipeptides | 34% | 4 | 69% | 2 |
| Orbitrex Peptides fake domains reported about Orbitrex Peptides: Finnrick's note, quoted on the alerts page | 34% | 1 | 72% | 1 |
| Allen Biotechnology (ABC) | 34% | 4 | 64% | none |
| Peptide Partners | 33% | 13 | 67% | 3 |
| Shanghai Baoju | 33% | 4 | 67% | none |
| Oupeptide | 32% | 5 | 65% | none |
| Welon Peptide Solutions | 29% | 6 | 64% | none |
| Huaian Hanyou Peptide | 28% | 4 | 59% | none |
| TSC Top Supplements China | 27% | 5 | 67% | none |
All 27 vendors with a Finnrick TB-500 score
| Vendor | TB-500 score | Tests | Overall | Listings here |
|---|---|---|---|---|
| Qing Li Peptide | 23% | 18 | 61% | none |
| LiliPeptide | 22% | 14 | 66% | none |
From each vendor's Finnrick profile, fetched Sep 25, 2026. Scores with few tests are pulled toward the middle.
Often sold by the same stores
Related peptides
How these prices are calculated
Each price is the store's public list price on the day shown, divided by the total milligrams in the pack (milligrams per vial times vials), converted to US dollars at European Central Bank rates. Price lists that stores publish (feeds) were read on Nov 9, 2026. 1,631 prices read from product pages, oldest Oct 27, 2026. Lab data fetched Sep 25, 2026. Full method. Why kits cost less per mg. Spotted a wrong price or pack size? Report an error on this page.