Thymogen

Research Phase

Thymogen (Glu-Trp Dipeptide)

Aliases
Glu-Trp, L-glutamyl-L-tryptophan
Administration
Intramuscular injection, Intranasal

How it works

  1. Believed to support T-lymphocyte differentiation and normalize immune cell ratios, similar in intended effect to Thymalin but using a minimal, fully synthetic two-amino-acid sequence.

    Thymogen is essentially a stripped-down version of Thymalin — researchers identified just two amino acids that seem to carry much of the immune-supporting effect, rather than using the full thymus extract.

  2. Its very small size allows for both injectable and intranasal administration, unlike the larger polypeptide complex found in Thymalin.

    Because it's so small, it can be given as a nasal spray as well as an injection, which is unusual for a peptide in this category.

Result

Russian clinical research suggests immune-supporting effects comparable to thymus-extract peptides like Thymalin, achieved with a much simpler synthetic structure — though, like Thymalin, this evidence has not been reviewed by the FDA and the compound remains outside conventional U.S. prescription channels.