Not FDA-approved (used in Russia)Synthetic dipeptide (Glu-Trp)Immune research
Thymogen
Thymogen (oglufanide) is the dipeptide glutamyl-tryptophan, used in Russia as an immunomodulator.
What is Thymogen?
Thymogen (oglufanide) is the dipeptide glutamyl-tryptophan, used in Russia as an immunomodulator. Thymogen is not approved by the FDA (used in Russia); products sold online in the US are labeled for research use only.
Glu-Trp is a dipeptide composed of L-glutamic acid and L-tryptophan joined by a peptide linkage. It has a role as a metabolite, an antineoplastic agent, an immunomodulator and an angiogenesis modulating agent. It is functionally related to a L-glutamic acid and a L-tryptophan.
Key takeaways
- Thymogen is not approved by the FDA (used in Russia); products sold online in the US are labeled for research use only.
- PubMed indexes 81 papers on Thymogen (5 tagged as clinical trials) as of October 19, 2026.
- 9 vendors in our directory listed Thymogen in their public catalog on October 19, 2026.
Structure
Regulatory & access status
Thymogen is not approved by the FDA (used in Russia); products sold online in the US are labeled for research use only.
Sellers that market unapproved peptides for human use can receive FDA warning letters; our vendor directory links any letter we found on fda.gov.
How much research exists on Thymogen?
PubMed indexes 81 papers mentioning Thymogen in the title or abstract, 4 of them from the last five years and 5 tagged as clinical trials (search run October 19, 2026; repeat the search).
Most relevant recent papers
- The First Reciprocal Activities of Chiral Peptide Pharmaceuticals: Thymogen and Thymodepressin, as Examples. — Int J Mol Sci, 2024 · review
- Hepatoprotective Effects of Thymogen Analogues in Hydrazine Hepatopathy in Rats. — Bull Exp Biol Med, 2025
- Reparative and Antioxidant Effects of New Analogues of Immunomodulator Thymogen in Experimental Model of Liver Damage. — Bull Exp Biol Med, 2023
- [Use of thymogen in the treatment of various forms of acute abdominal disorders in an experiment]. — Patol Fiziol Eksp Ter, 1998
- [Thymogen in the complex treatment of inflammatory diseases of the female genital system]. — Akush Ginekol (Mosk), 1992 · clinical trial
- [The effect of the synthetic immunomodulator thymogen on radiation-induced carcinogenesis in rats]. — Vopr Onkol, 1992
What the evidence does not show
- Paper counts measure research attention, not whether Thymogen works or is safe.
- No FDA review of any "research use only" product's identity, purity, sterility or dose.
Research suppliers that list Thymogen
9 vendors in our directory listed a product matching Thymogen in their public catalog on October 19, 2026. Listed alphabetically; a listing is not an endorsement. Research use only.
- BioLongevity Labs
- Core Peptides
- Eros Peptides
- Integrative Peptides
- Modern Aminos
- Paramount Peptides
- Peptide Crafters
- Pure Lab Peptides
- Swiss Chems
Prices per mg, where we could verify them, are on our price comparison.
Thymogen reconstitution math
Lab arithmetic only, not dosing guidance: use the peptide calculator to turn a vial size and diluent volume into a concentration.
Thymogen FAQ
Is Thymogen FDA-approved?
Thymogen is not approved by the FDA (used in Russia); products sold online in the US are labeled for research use only.
Is Thymogen safe?
Safety data come from the published studies listed on this page; read them in full. Products sold as "research use only" have no FDA review of their purity, sterility or dose.
How much research is there on Thymogen?
PubMed indexes 81 papers on Thymogen (5 tagged as clinical trials) as of October 19, 2026.
Who sells Thymogen?
BioLongevity Labs, Core Peptides, Eros Peptides, Integrative Peptides, Modern Aminos, Paramount Peptides and 3 more listed it on their public catalogs when we checked; a listing is not an endorsement.
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