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Thymogen
Last reviewed: July 13, 2026 by The Peptide Catalog Team
A Khavinson thymus dipeptide (Glu-Trp / EW) isolated from Thymalin; Russian research reports immune-modulating effects, single-lab preclinical/clinical only. Thymogen is a thymus-derived Glu-Trp dipeptide bioregulator studied for immune modulation.
Overview
Core Benefits
Key AdvantagesThese are educational summaries of commonly discussed effects in wellness/regenerative contexts, not guarantees.
Thymogen Results Timeline
ProgressionTimeline is illustrative and non-guaranteed. Outcomes vary and are commonly discussed alongside training, nutrition, sleep, and cycling practices.
How It WorksShort-Peptide Bioregulator — Thymus / Immune (Single-Lab Evidence)
Target → Signal → Effect → Outcomes
Immune Cells / Thymic Regulation
Thymogen is the dipeptide Glu-Trp (EW), isolated from the Thymalin thymus extract and then synthesized. It is proposed to act on T-cell differentiation and immune balance, framed within the Khavinson bioregulator model.
T-Cell / Immune Activation
Rodent and Russian clinical reports from the originating group describe immune activation and T-cell effects. Single-lab evidence — a plausible immune signal, not a Western-validated pathway.
Immune Modulation + Rodent Lifespan/Anti-Tumor
A rat study reported modest max-lifespan increase and fewer spontaneous tumors. Russian clinical practice used it as an immunocorrector. No Western randomized trials or independent replication.
Reported Immune Support (Unverified in Trials)
Users and Russian practice describe cold/flu-season immune support, but no controlled human trial confirms a felt effect. Treat as reported, not proven.
What Makes This Peptide Different
Thymogen is the isolated/synthesized Glu-Trp dipeptide from Thymalin — the best-evidenced of the synthetic bioregulators here, with real rodent data plus decades of Russian clinical use, but still single-lab and without Western trials.
Thymogen Vendors
Dosing ProtocolImmune Support (Research / Russian Clinical Practice)
Educational reference only. Individual responses vary. Consult healthcare provider before use.
Why This Dosing Protocol
Why short courses? Matches the documented Russian intermittent-course practice, repeated seasonally.
Reconstitution Calculator
Dilution math and unit conversions. Prefilled using a common vial size for this peptide.
Open calculatorStorage & Handling
Storage at a glance
Proper storage temperatures, shelf life, reconstitution best practices, and travel tips for lyophilized and reconstituted peptides.
Handling specifics
Educational overview on storage, labeling, and traceability considerations for lab environments. Consult primary literature and vendor documentation for specifics.
- Freezer (-20°C): 1+ year
- Refrigerator (2-8°C): 1-3 months
- Room temperature: 2-3 weeks (emergency only)
- MUST refrigerate at 2-8°C
- 4-week maximum shelf life
- NEVER freeze after reconstitution
- Use bacteriostatic water for multi-dose
FAQ
What is Thymogen?
Thymogen is a synthetic thymus dipeptide — Glu-Trp, or EW — isolated from the Thymalin extract and then synthesized, part of the Russian Khavinson bioregulator family. It is marketed for immune support. Rodent studies and Russian clinical reports from the originating group describe immune-modulating effects.
How strong is the evidence behind Thymogen?
Moderate by the standards of this family — there is real rodent data (lifespan and anti-tumor) plus Russian clinical use — but it is single-lab, older, and without Western randomized trials or independent replication. Sold as a research chemical in the West.
How is Thymogen different from Thymalin?
Thymalin is the natural multi-peptide thymus extract; Thymogen is the single isolated/synthesized dipeptide (Glu-Trp) from it. They are related but not identical, and each has its own evidence base.
How long does reconstituted peptide last?
Once mixed with bacteriostatic water, peptides remain stable for up to 4 weeks when refrigerated at 2-8°C (36-46°F). Unopened powder can last 1+ year in the freezer. Get our complete Storage & Travel Guide.
Is this peptide legal to purchase?
Peptides sold "for research purposes only" are legal to purchase in the US, but are not FDA-approved for human use outside of specific medical applications. Always consult a healthcare provider before use.
New to peptides?
Take our Peptide Match tool to find the best peptide for your goals. You can also read our Complete Guide to Peptides to learn the basics.
Thymogen Research Articles
Thymogen Dosage: What the Research Shows
No modern trial set a Thymogen dose. Russian practice used ~100mcg short courses — here's the reconstitution math and why a 20mg research vial doesn't fit.
side-effectsThymogen Side Effects: What the Evidence Shows
Its makers call it nearly side-effect-free after decades of Russian use. Independent Western data barely exists — here's what that gap hides.
resultsThymogen Results: Week-by-Week Timeline
Thymogen has no modern human efficacy trial — so what shapes its reported timeline? Old Russian course data and labeled community reports, week by week.
reconstitutionThymogen Reconstitution: 20mg Vial Mixing Chart
Thymogen has no validated human concentration. See how community resources describe mixing the 20mg vial, plus syringe-unit math and storage limits.
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