Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Thymogen (also marketed as Thymagen) is a synthetic dipeptide, L-Glu-L-Trp (Glu-Trp), originally isolated by the Khavinson group from the calf-thymus polypeptide complex Thymalin and then synthesized. It is registered as a pharmaceutical in Russia for immunocorrection (nasal drops / IM injection). Not FDA-approved in the US; research-use only.
Lowest Price
$39.99
Highest Price
$80.00
Average Price
$66.74
Potential Savings
50%
across 4 options
2 of 4 vendors are lab-verified for Thymogen
We cross-check each vendor's Certificate of Analysis against the issuing lab's own verification portal — so “cheapest” isn't the only signal.
Best price trend
Lowest $/mg for Thymogen · last 45 days
$7.00/mg
▲ 250% vs 45d ago
Trust grade first, cheapest within grade
vial · 20mgbiolongevitylabs.com· price updated yesterday
Lot 44-3-46031· tested 2026-02-04
$4.00/mg
50% more per mg
vial · 20mgkimerachems.co· price updated yesterday
Lot KC-TYG-CLR1· tested 2026-03-13· vendor-declared ✓
$3.35/mg
40% more per mg
vial · 20mgpeptidetech.co· price updated 5d ago
$2.00/mg
vial · 20mggeneticpeptide.com· price updated yesterday
$120.00−33%
$80.00$4.00/mg
50% more per mg
Prices are estimates and may vary. For research use only. We may earn a commission on purchases through affiliate links. Not medical advice.
Check formulation: Lyophilized powder requires reconstitution before use. Pre-mixed solutions are more convenient but may have a shorter shelf life and higher prices.
Compare per-mg cost: Different strengths and quantities make direct price comparison difficult. Calculate the per-milligram cost to find the true best value.
Verify COAs: Look for vendors that publish per-batch Certificates of Analysis from named, accredited labs. Every vendor on this page is verified for endotoxin testing — not just HPLC purity.
Evidence base is single-lab (Khavinson and collaborators). A 12-month rat study (Anisimov, Khavinson, Morozov, Biogerontology 2000) reported extended maximum lifespan and reduced spontaneous tumor incidence. Russian clinical reports claim benefit in acute/chronic respiratory infections and post-surgical immunodeficiency; these have not been independently reproduced in Western RCTs.
This platform provides informational tools only, not medical advice.
Anisimov, Khavinson, Morozov — Immunomodulatory synthetic dipeptide L-Glu-L-Trp slows down aging and inhibits spontaneous carcinogenesis in rats (Biogerontology)
2000
Khavinson et al. — The Use of Thymalin for Immunocorrection and Molecular Aspects of Biological Activity (includes Glu-Trp / Thymogen, Biol Bull Rev)
2021
Khavinson, Kuznik, Ryzhak — Peptide bioregulators: clinical studies results (covers Thymogen/Timogen, Adv Gerontol, Russian)
Prices verified as of June 2026. Actual prices may vary. For research use only.
2013
Disclosed Labs