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Buyer's guide · November 2026 · 104 suppliers · United Kingdom · page 2 of 4

Compare Thymosin Alpha-1 suppliers in the UK

Suppliers 31 to 60 of 97 with Thymosin Alpha-1 on sale based in the UK, in PepFinder Score order. Back to the first page for the price range, market history and questions.

Prices checked 8 Nov 2026 · 178 listings · 159 confirmed in stock · 14 out of stock · Thymic peptides

Thymosin Alpha-1 · listed price per mg
GBP · single vials · 73 suppliersmedian £4.90/mg
£1.18/mg£24.30/mg

Multi-vial packs: £1.80/mg to £12.94/mg, median £4.27/mg (27 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 31–60 of 97 with listings on sale (7 more with everything out of stock) · prices in GBP only, never converted

  1. 31
    Oxford Research Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    62 products tracked

    6.8/ 10PepFinder Score

    We may earn a commission. How this works

    From £4.30/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-110 mg£43.00£4.30/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.

  2. 32
    Research Peptides NI logo
    Third-party testing statedCOA page linked, not reviewed

    108 products tracked · Delivery Estimated delivery time: 1–2 business days (UK & Ireland). · Ships to 36 countries

    6.8/ 10PepFinder Score

    We may earn a commission. How this works

    From £3.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1 10mg10mg / Pen Refill
    Liquid
    £45.00—In stockOn their site ↗
    Thymosin Alpha-1 10mg10mg / Research Pen
    Liquid
    £65.00—In stockOn their site ↗
    Thymosin Alpha-1 10mg10 mg£30.00£3.00/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.

  3. 33
    biolabsuk.co.uk logo
    Third-party testing stated

    80 products tracked

    6.7/ 10PepFinder Score

    We may earn a commission. How this works

    From £6.80/mg (5 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin alpha-1 5 mg5 mg£33.99£6.80/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. 34
    Lab Peptides logo

    Lab Peptides

    GB based

    148 products tracked

    6.7/ 10PepFinder Score

    We may earn a commission. How this works

    From £4.63/mg (16 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-12 mg£15.00£7.50/mgIn stockOn their site ↗
    Thymosin Alpha-15 mg£29.00£5.80/mgIn stockOn their site ↗
    Thymosin Alpha-110 mg£49.00£4.90/mgIn stockOn their site ↗
    Thymalfasin10 mg£243.00£24.30/mgIn stockOn their site ↗
    Thymosin Alpha-115 mg£71.00£4.73/mgIn stockOn their site ↗
    Thymosin Alpha-116 mg£74.00£4.63/mgIn stockOn their site ↗

    + 1 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.

  5. 35
    Lab77 Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    120 products tracked · Ships to 1 country

    Pays byCardBank transfer
    6.7/ 10PepFinder Score

    We may earn a commission. How this works

    From £3.30/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-110mg pen
    Liquid
    £68.00—In stockOn their site ↗
    Thymosin Alpha-110 mg£33.00£3.30/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. 36
    RETA LAB UK logo

    RETA LAB UK

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

    78 products tracked · Ships to 1 country

    Pays byCardBank transferCrypto
    6.7/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1 12.5mg12.5 mg——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.

  7. 37
    UK Peptide logo

    UK Peptide

    GB based

    90 products tracked

    Pays byCardCrypto
    6.7/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1As listed£70.00—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.

  8. 38
    Adaptog Research logo
    COA page linked, not reviewed

    162 products tracked

    Pays byCardBank transferCrypto
    6.6/ 10PepFinder Score

    We may earn a commission. How this works

    From £2.45/mg (pack of 10 × 20 mg)

    Listing as namedSizePricePer mgStock
    Thymalfasin (10 pack)10 × 2 mg
    20 mg in total
    £134.71£6.74/mgIn stockOn their site ↗
    Thymosin Alpha-1 (10 pack)10 × 2 mg
    20 mg in total
    £258.75£12.94/mgIn stockOn their site ↗
    Thymalfasin (10 pack)10 × 5 mg
    50 mg in total
    £195.58£3.91/mgIn stockOn their site ↗
    Thymosin Alpha-1 (10 pack)10 × 5 mg
    50 mg in total
    £388.13£7.76/mgIn stockOn their site ↗
    Thymosin Alpha-1 (10 pack)10 × 10 mg
    100 mg in total
    £646.88£6.47/mgIn stockOn their site ↗
    Thymalfasin (10 pack)10 × 10 mg
    100 mg in total
    £299.28£2.99/mgIn stockOn their site ↗

    + 1 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.

  9. 39
    Nugenyx logo

    Nugenyx

    GB based
    Third-party testing stated

    26 products tracked · Ships to 36 countries

    4.7 Trustpilot(38)
    6.6/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    Thymosin Alpha 1As listed£99.00—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.

  10. 40
    Peptides Distro logo

    532 products tracked

    6.6/ 10PepFinder Score

    We may earn a commission. How this works

    From £3.37/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1 Peptide Vials5 mg£19.50£3.90/mgIn stockOn their site ↗
    Thymosin Alpha-1 Peptide Vials10 mg£33.70£3.37/mgIn stockOn their site ↗
    Thymosin Alpha-1 Peptide Vials10 × 5 mg
    50 mg in total
    £150.00£3.00/mgIn stockOn their site ↗
    Thymosin Alpha-1 Peptide Vials10 × 10 mg
    100 mg in total
    £258.90£2.59/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. 41
    PGR Peptides logo

    PGR Peptides

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

    121 products tracked · Ships to 1 country

    4.9 Trustpilot(76)
    6.6/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    Thymosin Alpha 1Vial Only£38.50—In stockOn their site ↗
    Thymosin Alpha 1Preloaded Cartridge
    Liquid
    £49.50—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.

  12. 42
    ApexLink logo

    ApexLink

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

    26 products tracked · Ships to 36 countries

    Pays byCard
    2.9 Trustpilot(2)
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    THYMOSIN ALPHA-1As listed£18.00—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.

  13. 43
    BioVanta Research logo
    Third-party testing statedCOA page linked, not reviewed

    93 products tracked · Ships to 1 country

    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From £3.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1 10 mg10 mg£29.95£3.00/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.

  14. 44
    Bluewell Peptides logo
    COA page linked, not reviewed

    63 products tracked · Ships to 36 countries

    Pays byBank transfer
    4.8 Trustpilot(43)
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From £4.60/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha 1 5mg Peptide5 mg£26.95£5.39/mgIn stockOn their site ↗
    Thymosin Alpha 1 10mg Peptide10 mg£45.95£4.60/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.

  15. 45
    Peptide Clyde logo
    Third-party testing statedCOA page linked, not reviewed

    33 products tracked · Delivery UK standard delivery is typically 1–3 working days.

    Pays byCardBank transferPayPal
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From £4.00/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-110 mg£39.99£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.

  16. 46
    Pure peptides logo
    Third-party testing stated

    62 products tracked

    Pays byBank transfer
    6.5/ 10PepFinder Score

    We may earn a commission. How this works

    From £4.40/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha 1 10mg10 mg£44.00£4.40/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.

  17. 47
    British Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    88 products tracked

    4.5 Trustpilot(17)
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1As listed£70.00—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.

  18. 48
    Kovalabs logo

    Kovalabs

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

    31 products tracked · Ships to 1 country

    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1As listed£39.99—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.

  19. 49
    Third-party testing statedCOA page linked, not reviewed

    43 products tracked

    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From £7.50/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1 - 10mg10 mg£75.00£7.50/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.

  20. 50
    Premier Peptides logo

    24 products tracked

    4.4 Trustpilot(10)
    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From £3.50/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    THYMOSIN ALPHA-1 10mg10 mg£34.99£3.50/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.

  21. 51
    retasupplier.co.uk logo
    Third-party testing statedCOA page linked, not reviewed

    61 products tracked

    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From £1.18/mg (5 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1 Lyophilized Peptide Vial 5mg5 mg£5.92£1.18/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.

  22. 52
    Third-party testing statedCOA page linked, not reviewed

    36 products tracked

    6.4/ 10PepFinder Score

    We may earn a commission. How this works

    From £2.70/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin alpha-1 5 mg5 mg£18.95£3.79/mgIn stockOn their site ↗
    Thymosin alpha-1 10 mg10 mg£27.00£2.70/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.

  23. 53
    Be Better Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    46 products tracked

    Pays byCard
    6.3/ 10PepFinder Score

    We may earn a commission. How this works

    From £5.00/mg (5 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1 5mg5 mg£24.99£5.00/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.

  24. 54
    Third-party testing stated

    39 products tracked

    6.3/ 10PepFinder Score

    We may earn a commission. How this works

    From £4.50/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha‑1 (Tα1) 10 mg10 mg£44.99£4.50/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.

  25. 55
    Nūvo Peptides logo
    Third-party testing stated

    44 products tracked

    Pays byPayPal
    6.3/ 10PepFinder Score

    We may earn a commission. How this works

    From £6.00/mg (5 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1 — 5mg | Research Grade5 mg£29.99£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.

  26. 56
    Research Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    74 products tracked · Ships to 1 country

    6.3/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1As listed£70.00—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.

  27. 57
    BioTide UK logo

    BioTide UK

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

    36 products tracked · Ships to 1 country

    Pays byBank transfer
    6.2/ 10PepFinder Score

    We may earn a commission. How this works

    From £4.40/mg (5 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1 Research Peptide – 5mg & 10mg5 mg£21.99£4.40/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.

  28. 58
    Third-party testing statedCOA page linked, not reviewed

    37 products tracked · Ships to the UK

    Pays byBank transferCrypto
    6.2/ 10PepFinder Score

    We may earn a commission. How this works

    From £3.82/mg (10 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin Alpha-1 10 mg10 mg£38.24£3.82/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.

  29. 59
    Receptor Chem logo
    COA page linked, not reviewed

    45 products tracked

    Pays byCardBank transferCrypto
    6.2/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    Thymosin Alpha 1As listed£39.99—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.

  30. 60
    BioLab Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    56 products tracked · Ships to 36 countries

    Pays byBank transferCrypto
    6.1/ 10PepFinder Score

    We may earn a commission. How this works

    From £7.00/mg (5 mg vial)

    Listing as namedSizePricePer mgStock
    Thymosin alpha-1 5 mg5 mg£35.00£7.00/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.