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Thymosin Alpha-1

Research use only

Part of Anti-Aging & Longevity — Skin, cellular aging, and longevity research

No FDA-approved human dosing to cite

Thymosin Alpha-1 is sold as a research chemical and has no FDA-approved human dosing. Any dosing figures you’d find elsewhere online come from anecdotal or gray-market sources, not established clinical research — we won’t publish those as if they were. Use recent studies below to see what’s actually been published, which is not the same as evidence that a use is safe or effective in humans.

Recent research

Live results from PubMed, the NIH’s public database of biomedical literature.

References

Reviewed and approved by an APS editor — not just a raw search result.

IL-15 Plus Thymosin α1 Reduces Senescent Hepatic CD8(+) T Cells in Hepatocellular Carcinoma via PI3K/AKT Suppression.

Journal of gastroenterology and hepatology · 2026 May · PMID 41883056

Thymalfasin combined with immune checkpoint inhibitors in the treatment of non-small cell lung cancer: A retrospective study on efficacy, safety, and immunological function.

Pakistan journal of medical sciences · 2026 Mar · PMID 41994384

Thymosin Alpha-1 Restores Chemotherapy-Induced Antitumor Immunity by Chaperoning a MicroRNA Ligand of TLR7 in Dendritic Cells.

Cancer research · 2026 Jun 15 · PMID 42295795

Thymosin α1 Augments CD8⁺ T-Cell Activation and Reverses Exhaustion In Vitro.

Asian Pacific journal of cancer prevention : APJCP · 2026 Jun 1 · PMID 42345155

Regarding IL-15 Plus Thymosin α1 Reduces Senescent Hepatic CD8+ T Cells in Hepatocellular Carcinoma via PI3K/AKT Suppression.

Journal of gastroenterology and hepatology · 2026 Jul · PMID 42212632

Thymosin α1-induced secretion of the IL-15/RA complex by THP-1-derived dendritic cells restrains HIV latency in vitro.

Virulence · 2026 Dec · PMID 41824632

Preliminary results from a phase II trial of spatially fractionated radiotherapy combined with immunotherapy and anti-angiogenic therapy in patients with bulky solid tumors: early evidence of promising efficacy and favorable safety.

Radiation oncology (London, England) · 2026 Apr 30 · PMID 42063096

Peptide Therapies in Thyroid Health: Emerging Applications in Endocrine and Immune Modulation.

Integrative medicine (Encinitas, Calif.) · 2026 Apr · PMID 42222211

Thymosin α1 improves the outcomes of patients with hepatitis B virus-related acute-on-chronic liver failure by restoring immune balance.

Immunopharmacology and immunotoxicology · 2026 Apr · PMID 41887933

Thymosin α1 combined with immune checkpoint inhibitors: synergistic remodeling of the tumor immune microenvironment to enhance clinical efficacy and safety.

Frontiers in immunology · 2026 · PMID 42292432

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Thymosin Alpha-1 is sold as a research chemical and is not approved by the FDA for human use. This page does not recommend or endorse use outside of professional medical guidance. See the full disclaimer.