Immune & Thymic

Thymogen

Also known as Thymagen · Glu-Trp · L-glutamyl-L-tryptophan

PreliminaryIntramuscular injectionSubcutaneous injectionIntranasalMarketed in Russia as an immunomodulator; NOT FDA-approved in the US. Research-use-only in most Western markets.

Thymogen is a synthetic dipeptide of glutamyl-tryptophan (Glu-Trp), identified by Khavinson's group in Russia as a small active immunomodulatory unit related to the larger thymalin complex. It behaves as a modulatory rather than purely stimulatory agent, studied for normalizing both suppressed and overactive immune responses by influencing T-cell differentiation and cytokine signaling. Its tryptophan component has also prompted exploration of neurological and metabolic effects.

Studied / used for

Studied for immune modulation and T-cell differentiation
Used in protocols for immune restoration in Russian clinical practice
Studied for neurological and oxidative-stress effects (tryptophan pathway)

Commonly reported side effects

Injection-site reactions
Allergic/hypersensitivity reactions possible
Limited published adverse-event data

Preliminary. Mostly early or animal studies. This reflects the strength of the research base, not effectiveness or a recommendation.

Not medical advice.

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