Thymalin
A thymic peptide complex studied for immune system restoration, particularly in aging populations and immunocompromised states.
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This information is for educational purposes. Peptide therapy should be guided by a licensed healthcare provider. Connect with a Noho clinician
What is Thymalin?
Thymalin is a peptide complex originally isolated from the thymus gland by Vladimir Khavinson and Vladimir Morozov in the 1970s. It contains the dipeptides L-Glu-L-Trp (EW) and L-Lys-L-Glu (KE) among other thymic factors. It has been used in Russian clinical practice for decades to support immune function, particularly in elderly patients, those recovering from infections, and as an adjunct in oncology. A landmark 6-year clinical trial demonstrated that combined thymalin and epithalamin treatment reduced mortality by nearly 2-fold in elderly patients.
Why People Talk About It
Immune system restoration in aging
ModerateThymic function support
EmergingReduced infection susceptibility
ModerateLongevity and healthspan extension
PreliminaryHematopoietic stem cell differentiation
EmergingCOVID-19 adjunct therapy
EmergingHow It Works
Thymalin helps restore the immune system by supporting the thymus gland — the organ responsible for training immune cells. As we age, the thymus shrinks, and Thymalin may help compensate for this decline.
Common Questions
Safety Information
Common Side Effects
Cautions
- • Not FDA-approved in the US
- • Quality varies by source
- • Should be used under clinician guidance
What We Don't Know
Western clinical trial data is limited. Most evidence comes from Russian clinical practice and publications.
Published Research
17 studies[Geroprotective effect of thymalin and epithalamin].
Thymalin: Activation of Differentiation of Human Hematopoietic Stem Cells.
Peptides of pineal gland and thymus prolong human life.
Peptides and Ageing.
The Influence of KE and EW Dipeptides in the Composition of the Thymalin Drug on Gene Expression and Protein Synthesis Involved in the Pathogenesis of COVID-19.
Peptides Regulating Proliferative Activity and Inflammatory Pathways in the Monocyte/Macrophage THP-1 Cell Line.
Results and Prospects of Using Activator of Hematopoietic Stem Cell Differentiation in Complex Therapy for Patients with COVID-19.
Natural and synthetic thymic peptides as therapeutics for immune dysfunction.
Immunomodulatory synthetic dipeptide L-Glu-L-Trp slows down aging and inhibits spontaneous carcinogenesis in rats.
[Immunological correction in progressive pulmonary tuberculosis].
Effect of Thymalin on the Tumor and Thymus under Conditions of Activation Therapy In Vivo.
Contemporary Views on the Nature and Clinical Application of Thymus Preparations.
[Characteristics of the pineal gland and thymus relationship in aging].
[Correction with thymic and bone marrow peptides of radiation injuries of immuno- and hemopoiesis].
[The protective effect of peptides from the thymus and tracheal mucosa in an experimental respiratory influenzal infection].
Age-related changes of thymalin content in human epidermis.
Expression features of T-lymphocytes, B-lymphocytes and macrophages in the post-traumatic regenerate of the mandible rats under conditions of thymalin injection.
Always consult a qualified clinician
This information is for educational purposes. Peptide therapy should be guided by a licensed healthcare provider. Connect with a Noho clinician
Research Insights
Related Peptides
Quick Facts
- Class
- Thymic Peptide
- Evidence
- Moderate
- Safety
- Moderate Data
- Updated
- Mar 2026
- Citations
- 17PubMed
Also known as
Tags
Related Goals
Evidence Score
Clinical Trials
View Clinical TrialsLinks to ClinicalTrials.gov for reference. Listing does not imply endorsement.
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