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Thymalin peptide therapy
Anti-Aging & LongevityModerate Evidence

Thymalin Peptide Therapy

Benefits, Side Effects, Cost & Protocols

Thymalin peptide molecular structure diagram from PubChem

Thymalin is a polypeptide complex isolated from the thymus gland that has immunomodulatory properties. It is studied for its ability to restore T-cell function, normalize immune responses, and has been used in Eastern European clinical practice for immunodeficiency conditions.

ByChris Riley(CFA)&Alex Evans, PharmD, MBA(PharmD, MBA)|Updated

Clinically Reviewed

Reviewed by Alex Evans, PharmD, MBA · Updated May 2026

Evidence-Based

Sourced from FDA, PubMed & ClinicalTrials.gov · View sources

FDA Status
Research Only Not currently approved for human use in the US. Available as a research compound. Not eligible for compounding.
Evidence
Moderate Evidence
Category
Anti-Aging & Longevity

How Thymalin Works

Thymus-derived peptides that may support T-cell development and immune system function.

Thymalin FAQ

What is THYMALIN?

Thymalin is a peptide extract from thymus tissue researched for its potential to support immune function and thymus regeneration as part of longevity protocols.

How does THYMALIN work?

Thymus-derived peptides that may support T-cell development and immune system function.

Is THYMALIN legal to buy?

THYMALIN is sold as a research chemical for laboratory use only. It is not approved for human use by the FDA. Regulations vary by jurisdiction.

Where can I buy THYMALIN?

THYMALIN is available as a research compound from verified online vendors. Always verify third-party testing before purchasing.

What category does THYMALIN belong to?

THYMALIN is primarily classified as a anti-aging & longevity peptide. Peptides studied for longevity, cellular senescence, telomere biology, and general anti-aging effects.

What are the research benefits of THYMALIN?

THYMALIN has been studied for: Thymus regeneration, Immune support, Anti-aging. Thymus regeneration; immune aging research.

Key Studies

293 total on PubMed0

Peptides of pineal gland and thymus prolong human life

Neuro Endocrinol Lett · Neuro Endocrinol Lett

Thymalin and Epithalamin peptides reduced mortality 2.0-4.1 fold in elderly patients

[Geroprotective effect of thymalin and epithalamin]

Adv Gerontol · Adv Gerontol

Thymalin and Epithalamin reduced mortality 2.0-4.1 fold in elderly patients over 60 years

[The effect of thymalin on lipid metabolism and the clinical course of ischemic heart disease]

Lik Sprava · Lik Sprava

Thymalin increased thymic factor, normalized lipid metabolism, and improved cardiac function in heart disease patients

[The lymphocyte subpopulation in patients with duodenal ulcer and the immunocorrective activity of thymalin and dalargin]

Lik Sprava · Lik Sprava

Thymalin combined with dalargin restores T-lymphocyte populations in duodenal ulcer patients

[The effect of combined therapy with the use of thymalin and piracetam on the level of middle-molecule peptides in the blood and on the lipid peroxidation activity in patients with diffuse toxic goiter]

Ter Arkh · Ter Arkh

Combined thymalin and piracetam therapy improved blood peptide markers and lipid peroxidation in toxic goiter patients

Thymalin Compound Data

Thymalin peptide chemical structure and molecular formula from PubChem
Molecular Formula
C33H54N12O15
Molecular Weight
858.9 g/mol
IUPAC Name
(2S)-4-amino-2-[[(2S)-2-[[2-[[2-[[(2S)-5-amino-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-5-oxopyrrolidine-2-carbonyl]amino]propanoyl]amino]hexanoyl]amino]-3-hydroxy-propanoyl]amino]-5-oxo-pentanoyl]amino]acetyl]amino]acetyl]amino]-3-hydroxy-propanoyl]amino]-4-oxo-butanoic acid
View full compound on PubChem

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Medical Disclaimer: The information on this page is for educational purposes only and does not constitute medical advice. Peptide therapies have not been evaluated by the FDA for most listed indications.All prices shown are estimates based on publicly available data and may not reflect current pricing — providers and brands set their own prices and can change them at any time. Always verify pricing directly with the provider before purchasing. Consult a licensed healthcare provider before starting any peptide protocol.

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