Prices checked 25 Sept 2026 · 69 listings · 66 in stock · Bioregulator peptides
Each currency is shown separately; prices are never converted.
Regulatory status
In United Kingdom the regulator is the Medicines and Healthcare products Regulatory Agency (MHRA). Rules on buying, importing and using this product differ by country. Suppliers list it for laboratory research; nothing here is medical advice.
Showing 38 of 38 suppliers · prices in GBP only, never converted
49 products tracked · Delivery 1 Day · Ships to 36 countries · Est. 2025
From £2.00/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg | 10mg | £19.99 | £2.00/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin | As listed | £29.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £2.50/mg (10 mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin | 10 mg | £24.99 | £2.50/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
39 products tracked · Ships to 36 countries
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Adonis Thymalin – Research Peptide (RUO) | As listed | £24.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
79 products tracked · Ships to 31 countries
From £5.48/mg (2mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 2mg | 2mg | £10.95 | £5.48/mg | In stock | On their site ↗ |
| Thymalin 5mg | 5mg | £29.50 | £5.90/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
162 products tracked
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin (10 pack) | 2mg | £77.63 | — | In stock | On their site ↗ |
| Thymalin (10 pack) | 5mg | £112.13 | — | In stock | On their site ↗ |
| Thymalin (10 pack) | 10mg | £172.50 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
79 products tracked · Delivery Most UK orders are dispatched within 24 hours and arrive within 1–3 working days using tracked delivery. · Ships to 36 countries
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin | As listed | £17.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £2.50/mg (10 mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10 mg | 10 mg | £25.00 | £2.50/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £1.90/mg (10 mg vial)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg | 10 mg vial | £19.00 | £1.90/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
52 products tracked · Delivery Delivered in 1-2 working days
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin | As listed | £27.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
65 products tracked · Delivery UK Delivery Tracked 24 (1 day) .
From £1.50/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg | 10mg | £15.00 | £1.50/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
63 products tracked
From £1.99/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg | 10mg | £19.90 | £1.99/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £1.44/mg (50mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| THYMALIN - Research Grade Peptide | 2mg | £9.95 | £4.98/mg | Out of stock | On their site ↗ |
| THYMALIN - Research Grade Peptide | 5mg - Ultimate | £19.95 | £3.99/mg | In stock | On their site ↗ |
| THYMALIN - Research Grade Peptide | 5mg | £14.95 | £2.99/mg | In stock | On their site ↗ |
| THYMALIN - Research Grade Peptide | 10mg - Ultimate | £33.25 | £3.33/mg | In stock | On their site ↗ |
| THYMALIN - Research Grade Peptide | 10mg | £23.85 | £2.39/mg | In stock | On their site ↗ |
| THYMALIN - Research Grade Peptide | 20mg | £41.25 | £2.06/mg | In stock | On their site ↗ |
+ 11 more on the full catalogue.
Prices as last checked on their site. The supplier confirms the final price and availability.
81 products tracked · Ships to 36 countries
From £2.30/mg (10 mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin | 10 mg | £23.00 | £2.30/mg | Out of stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
119 products tracked · Delivery Estimated delivery time: 1–2 business days (UK & Ireland). · Ships to 36 countries
From £2.00/mg (10mg / Standard Vial)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg - Research Grade Peptide | 10mg / Research Pen | £55.00 | — | In stock | On their site ↗ |
| Thymalin 10mg - Research Grade Peptide | 10mg / Standard Vial | £20.00 | £2.00/mg | In stock | On their site ↗ |
| Thymalin 10mg - Research Grade Peptide | 10mg / Pen Refill | £35.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £1.85/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin | 10mg | £18.50 | £1.85/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
30 products tracked · Ships to 1 country
From £2.00/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg | 10mg | £20.00 | £2.00/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £4.40/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| THYMALIN - 10mg | 10mg | £43.99 | £4.40/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £5.00/mg (5mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 5mg | 5mg | £24.99 | £5.00/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £2.50/mg (10MG)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| THYMALIN 10MG : Research Only | 10MG | £25.00 | £2.50/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
25 products tracked · Ships to 36 countries
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| THYMALIN | As listed | £27.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £2.80/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg (Strictly For Research Purposes Only) | 10mg | £27.99 | £2.80/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
27 products tracked · Ships to 1 country
From £6.00/mg (5mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 5mg | 5mg | £29.99 | £6.00/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £2.00/mg (· 10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin Pen | · 10mg | £60.00 | — | In stock | On their site ↗ |
| Thymalin Cartridge | · 10mg | £30.00 | — | In stock | On their site ↗ |
| Thymalin | · 10mg | £20.00 | £2.00/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
63 products tracked · Delivery Delivery to the Republic of Ireland is estimated at 3–5 working days after dispatch, but courier and customs processing can affect timings. · Ships to 1 country
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg | 10mg | £209.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £4.50/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg | 10mg | £44.99 | £4.50/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
110 products tracked · Ships to 36 countries
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin Peptide Buy | As listed | £76.44 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £5.48/mg (2mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 2mg | 2mg | £10.95 | £5.48/mg | In stock | On their site ↗ |
| Thymalin 5mg | 5mg | £29.50 | £5.90/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
88 products tracked
From £4.00/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg | 10mg | £40.00 | £4.00/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
56 products tracked · Ships to 36 countries
From £2.25/mg (20 mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 20 mg | 20 mg | £45.00 | £2.25/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £2.50/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Dr P. Thymalin 10mg Research Grade Material (For Laboratory Use Only) | 10mg | £24.99 | £2.50/mg | Out of stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From £7.80/mg (5mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 5mg | 5mg | £39.00 | £7.80/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin | As listed | £29.90 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
84 products tracked · Delivery We offer fast 24 hours delivery to your address with track and trace code from Royal Mail(UK).
From £5.48/mg (2mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 2mg | 2mg | £10.95 | £5.48/mg | In stock | On their site ↗ |
| Thymalin 5mg | 5mg | £29.50 | £5.90/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
46 products tracked · Delivery UK orders usually arrive within 1–3 business days . · Ships to the UK
From £2.30/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg | 10mg | £22.99 | £2.30/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
61 products tracked · Ships to the UK
From £2.20/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin 10mg Peptide | 10mg | £21.95 | £2.20/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
305 products tracked · Delivery delivery? Orders are processed within 24-48 hours · Ships to the UK
From £1.05/mg (20mg Vial)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin Pre-Mixed Pen 20mg | Pen kit with 1 pre mixed cartridge | £59.20 | — | In stock | |
| Thymalin | Kit = 20mg vial, bac water, syringes | £29.92 | — | In stock | |
| Thymalin | 20mg Vial | £20.94 | £1.05/mg | In stock | |
| Thymalin | Twin Pack 20mg | £0.00 | — | In stock | |
| Thymalin | 100mg Vial | £110.61 | £1.11/mg | In stock | |
| Thymalin | Kit = 100mg vial, bac water, syringes | £119.59 | — | In stock |
+ 1 more on the full catalogue.
Prices as last checked on their site. The supplier confirms the final price and availability.
106 products tracked · Ships to the UK
From £4.70/mg (10mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Thymalin For Lab Research | 10mg | £46.99 | £4.70/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
Told when Thymalin gets cheaper in the UK
Set a target price in GBP and we check every validated listing daily. Free with an account.
At a glance · 25 Sept 2026
Thymalin is a polypeptide extract of calf thymus developed in Leningrad in the 1970s by Vladimir Khavinson and Vyacheslav Morozov, and it has been a registered medicine in Russia for decades as an immunomodulator. It is not a single peptide: it is a mixture from which the dipeptides Glu-Trp (thymogen) and Lys-Glu (vilon) were later identified. Its clinical evidence consists of Russian studies, including a long-running 266-person geroprotection study and non-randomised COVID-19 cohorts, and it is not licensed in the UK, US or EU. Read the full Thymalin guide, with the published research and references.
The median listed price per mg across every tracked supplier listing Thymalin in each currency, recorded daily from validated listings only. Days with too few listings to publish are left out, not estimated. How we validate prices
GBP · median per mg £2.30/mg
We began recording daily market statistics on 25 Sept 2026. A trend appears once there is more than one day of data.
Catalogue changes, last 30 days
223 listings added · 0 withdrawn
Price per mg is only half the comparison. Check that the supplier publishes a certificate of analysis for the batch it is selling, ideally from an independent laboratory, and that the certificate confirms identity as well as purity: our guide on how to read a COA shows what to look for. A price far below the rest of the list is more often a warning than a bargain; peptide prices explained sets out why.
For what Thymalin is and what published studies have found, see our Thymalin guide. Handling questions are covered in how to store peptides, and the peptide calculator converts a vial size and water volume into concentration and syringe units. Rules on buying and importing differ by country: read are peptides legal in the UK? and see all suppliers serving the UK.
How to spot a fake peptide supplier explains each of these in more detail, and third-party peptide testing covers what independent results can and cannot prove.
Most research peptides are sold as freeze-dried (lyophilised) powder in sealed vials, which is mixed with a diluent such as bacteriostatic water before use in the lab. Some suppliers also sell pre-mixed solutions, nasal sprays or capsules under the same name. These are different products with different stability and dosing, so compare price per mg only between the same form, and check which form a listing is before comparing it with the rest of the table.
38 of the suppliers PepFinder tracks list Thymalin and are based in or ship to the UK. The highest rated are RS Bio Labs, Receptor Chem, Tide Labs. The list on this page is ranked by PepFinder Score, which weighs reliability, delivery, pricing, support and customer reviews, with stores based in the UK placed before those shipping in from abroad; nobody pays to be included or to rank higher.
Listed prices in GBP run from £1.05/mg to £7.80/mg, median £2.50/mg, across 49 listings from 29 suppliers. Compare price per mg rather than price per vial, and only within one currency; a price far below the rest is more often a warning than a bargain.
Suppliers on this page list Thymalin in 2mg, 5mg, 5mg - Ultimate, 10mg, 10 mg, 10 mg vial. Most research peptides are sold as freeze-dried powder in sealed vials; capsules, sprays and pre-mixed solutions are different products, so compare price per mg only between the same form.
Most research peptides are not controlled drugs in the UK, but selling or supplying an unlicensed medicine is an offence under the Human Medicines Regulations 2012; growth hormone and HCG are Class C controlled drugs. Our page on whether peptides are legal in the UK sets out the rules with a link to every source. This is general information, not legal advice.
Non-controlled medicines can be imported for your own use without an import licence, but Border Force can seize quantities above reasonable personal use, and controlled drugs such as growth hormone and HCG cannot be posted to you from overseas. Each supplier on this page shows where it is based, so you can see whether an order would cross a border.
Ask for a certificate of analysis for the batch being sold, and check that it names the laboratory, the batch number and the test date, and that it confirms identity by mass spectrometry as well as purity by HPLC. PepFinder has not yet collected certificates for Thymalin from these suppliers, so check each supplier's own site.
How this list is built: suppliers appear because they list Thymalin on their own website, read by our catalogue checks; nobody pays to be included or to move up. Ranking is by PepFinder Score. Prices, sizes and stock are as each site listed them when checked and may have changed. Provisional scores are based on incomplete research.
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