Peptide Referee

Peptide overview

Thymulin: research, legal status and who sells it

This page is information, not medical advice. Thymulin is not approved as a medicine in the markets below unless stated. Doses on this site are those used in published studies or on official labels, never advice for anyone's own use.

Also known as
FTS, Serum thymic factor, Facteur thymique serique, Thymulin acetate
Category
Zinc-dependent thymic peptide hormone (a nonapeptide) produced by thymic epithelial cells
Evidence level
Early human trials
Price range
$2.00/mg to $10.00/mg, median $5.25/mg across 4 vendors (compare)
Our lab tests
None yet (how testing will work)
WhereStatus
United StatesNot FDA-approved; FDA lists thymulin acetate in Category 3 (bulk drug substances nominated for compounding under section 503A without adequate support) [1][2].
United KingdomNo UK-licensed medicine containing thymulin appears in the MHRA products database [3].
European UnionNo medicine containing thymulin is authorized in the EU, according to EMA's central and Article 57 product data [4][5].
CanadaNo product containing thymulin appears in Health Canada's Drug Product Database [6].
AustraliaThymulin is not named in Australia's Poisons Standard (October 2026) [7].
Sport (WADA)Not named on the 2026 Prohibited List; WADA's section S0 covers any pharmacological substance with no current approval for human therapeutic use that is not otherwise listed [8].
 Summaries of official sources, checked —. Rules change; follow the source links. Not legal advice.

We haven't published a full overview of Thymulin yet. The legal status table and live prices on this page are current.

Thymulin prices: cheapest listings

The five lowest $/mg listings out of 4. See all Thymulin prices

Vendor Transparency Product Size Price $/mg vs median Stock Vendor's page
Peptide Plugs 57/100* Thymulin 20mg 20 mg $40 $2.00/mg −62% In stock View
Polaris Peptides 95/100 Thymulin 10mg 10 mg $40 $4.00/mg −24% In stock View
BioLongevity Labs 82/100 Thymulin Peptide (10mg) 10 mg $65 $6.50/mg +24% In stock View
Southern Aminos 10/100* Thymulin 10mg 10 mg $100 $10.00/mg +91% In stock View

Fetched Oct 16, 2026 from vendors' public listings; shipping and discounts excluded; $/mg uses the labeled amount. A transparency score marked * is based on fewer than six checks; checks we couldn't complete score 0. How we compare prices.

Sources

  1. Drugs@FDA: FDA-Approved Drugs (database searched by active ingredient). U.S. Food and Drug Administration. Accessed Oct 16, 2026
  2. Bulk Drug Substances Nominated for Use in Compounding Under Section 503A of the FD&C Act (updated 14 May 2026); Thymulin acetate appears in Category 3 (nominated without adequate support). U.S. Food and Drug Administration. Accessed Oct 16, 2026
  3. MHRA Products: licensed-medicine search for "thymulin". Medicines and Healthcare products Regulatory Agency (UK). Accessed Oct 16, 2026
  4. EMA medicines data: centrally authorised human medicines. European Medicines Agency. Accessed Oct 16, 2026
  5. EMA Article 57 product data: medicines authorised in the EU/EEA. European Medicines Agency. Accessed Oct 16, 2026
  6. Drug Product Database online query (searched by active ingredient). Health Canada. Accessed Oct 16, 2026
  7. Therapeutic Goods (Poisons Standard—October 2026) Instrument 2026 (F2026L01327, registered 30 September 2026). Federal Register of Legislation, Australian Government. Accessed Oct 16, 2026
  8. World Anti-Doping Code International Standard: Prohibited List 2026 (in force 1 January 2026). World Anti-Doping Agency. Accessed Oct 16, 2026