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Buyer's guide · November 2026 · 715 suppliers · All regions · page 16 of 23

Compare TB-500 suppliers and prices

Suppliers 451 to 480 of 683 with TB-500 on sale, in PepFinder Score order. Back to the first page for the price range, market history and questions.

Prices checked 8 Nov 2026 · 1,349 listings · 1,221 confirmed in stock · 94 out of stock · Thymic peptides

TB-500 · listed price per mg
GBP · single vials · 183 suppliersmedian £4.00/mg
£1.09/mg£17.50/mg

Multi-vial packs: £1.25/mg to £9.03/mg, median £3.50/mg (56 listings), shown separately.

USD · single vials · 163 suppliersmedian US$7.80/mg
US$2.25/mgUS$37.45/mg

Multi-vial packs: US$1.10/mg to US$14.90/mg, median US$3.80/mg (63 listings), shown separately.

EUR · single vials · 76 suppliersmedian €6.85/mg
€1.56/mg€24.50/mg

Multi-vial packs: €1.20/mg to €17.64/mg, median €3.33/mg (13 listings), shown separately.

Each currency is shown separately; prices are never converted. Packs of several vials are compared per mg of the whole pack, apart from single vials.

Suppliers 451–480 of 683 with listings on sale (32 more with everything out of stock) · prices in USD only, never converted

  1. 451
    Peptide Pros logo

    Peptide Pros

    US based
    Third-party testing statedCOA page linked, not reviewed

    107 products tracked · Delivery We ask you allow up to 14 days for domestic and 45 days for international orders for delivery to ensure your parcel has not simply been delayed – especially since Covid creates some delays in certain

    Pays byCard
    5.9/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    From US$18.63/mg (2 mg vial)

    Listing as namedSizePricePer mgStock
    TB-500 (Thymosin B4) 2mg2 mgUS$37.25US$18.63/mgIn stockOn their site ↗
    TB-500 (Thymosin B4) 2mg 100 VIALS AT 50% OFF100 × 2 mg
    200 mg in total
    		US$1,862.50US$9.31/mgIn stockOn their site ↗
    TB-500 (Thymosin B4) – 50 VIALS AT 30 PERCENT OFFAs listedUS$1,303.75—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  2. 452
    Peptide Test logo

    Peptide Test

    US based
    COA page linked, not reviewed

    180 products tracked

    Pays byCard
    5.9/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    TB-500 (TB4) - Purity and Mass Testing2 Vials (Non-Differentiated Results)US$320.00—In stockOn their site ↗
    TB-500 (TB4) - Purity and Mass Testing4 Vials (Non-Differentiated Results)US$560.00—In stockOn their site ↗
    TB-500 (TB4) - Purity and Mass Testing2 Vials (Differentiated Results)US$335.00—In stockOn their site ↗
    TB-500 (TB4) - Purity and Mass Testing5 Vials (Non-Differentiated Results)US$680.00—In stockOn their site ↗
    TB-500 (TB4) - Purity and Mass Testing3 Vials (Non-Differentiated Results)US$440.00—In stockOn their site ↗
    TB-500 (TB4) - Purity and Mass Testing3 Vials (Differentiated Results)US$470.00—In stockOn their site ↗

    + 3 more on the full catalogue.

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  3. 453
    PeptydLab LLC logo

    PeptydLab LLC

    US based
    Third-party testing statedCOA page linked, not reviewed

    25 products tracked

    5.9/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    From US$9.50/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    TB-500 5mg/10mg5 mgUS$47.50US$9.50/mgIn stockOn their site ↗
    TB-500 5mg/10mg10 mgUS$94.99US$9.50/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  4. 454
    Vantyx Research logo

    Vantyx Research

    US based
    Third-party testing statedCOA page linked, not reviewed

    27 products tracked

    5.9/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    From US$11.00/mg (5 mg vial)

    Listing as namedSizePricePer mgStock
    TB-500 (5 MG)5 mgUS$55.00US$11.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  5. 455
    Apex Peptide Supply logo

    Apex Peptide Supply

    US based
    Third-party testing statedCOA page linked, not reviewed

    32 products tracked

    5.8/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    From US$6.30/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    TB-5002 mgUS$22.99US$11.50/mgIn stockOn their site ↗
    TB-5005 mgUS$44.99US$9.00/mgIn stockOn their site ↗
    TB-50010 mgUS$62.99US$6.30/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  6. 456
    Koi Research Labs LLC logo

    Koi Research Labs LLC

    US based
    Third-party testing statedCOA page linked, not reviewed

    27 products tracked · Ships to 31 countries

    3.8 Trustpilot(30)
    5.8/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    From US$6.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    TB-500 (Thymosin Beta-4) 10mg10 mgUS$59.95US$6.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  7. 457
    NuScience Peptides logo

    NuScience Peptides

    US based
    Third-party testing statedCOA page linked, not reviewed

    66 products tracked

    5.8/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    From US$4.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    TB500 Peptide – Research-Grade Thymosin Beta-4 – 5mg | 10mg5 mgUS$39.99US$8.00/mgIn stockOn their site ↗
    TB500 Peptide – Research-Grade Thymosin Beta-4 – 5mg | 10mg10 mgUS$74.99US$7.50/mgIn stockOn their site ↗
    TB-500 Fragment 17-23 Peptide 10mg10 mgUS$39.99US$4.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  8. 458

    PeptidesRG

    US based
    Third-party testing statedCOA page linked, not reviewed

    36 products tracked

    5.8/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    TB500As listedUS$65.00—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  9. 459
    Pivot labs logo

    Pivot labs

    US based
    Third-party testing statedCOA page linked, not reviewed

    65 products tracked

    5.8/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    From US$15.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    TB-500, 5mg5 mgUS$79.99US$16.00/mgIn stockOn their site ↗
    TB-500, 10mg10 mgUS$149.99US$15.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  10. 460

    Pure Bio Labs

    US based
    Third-party testing statedCOA page linked, not reviewed

    68 products tracked

    5.8/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    From US$13.50/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    TB-500 VIAL (5MG)5 mgUS$89.99US$18.00/mgIn stockOn their site ↗
    TB-500 VIAL (10MG)10 mgUS$134.99US$13.50/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  11. 461
    Sports Technology Labs logo

    Sports Technology Labs

    US based
    Third-party testing statedCOA page linked, not reviewed

    34 products tracked

    Pays byCardCrypto
    5.8/ 10PepFinder Score
    Visit storeView review

    We may earn a commission. How this works

    From US$14.00/mg (5 mg vial)

    Listing as namedSizePricePer mgStock
    Buy TB-500 Thymosin Beta-4 Peptide | 5 mg High-Purity | Third-Party Tested5 mgUS$69.99US$14.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.