Thymosin alpha-1 (T\u03b11) is a 28-amino-acid peptide involved in immune-response regulation. Its synthetic form is called thymalfasin; ZADAXIN is one trade name. Findings in specific patient groups do not establish general immune-boosting or anti-aging benefits.<\/p>
Thymosin alpha-1 names the peptide, thymalfasin names its synthetic form, and ZADAXIN identifies a branded medicine. ZADAXIN product information hosted by Indonesia\u2019s medicines regulator describes chemically synthesized thymosin alpha-1. Substance identity and product identity should therefore be checked separately. BPOM Indonesia \u2014 ZADAXIN product information<\/a><\/p> No. Thymosin alpha-1 and thymosin beta-4 are different substances. A listing called TB-500 also needs its own label checked. Sharing part of a name does not make their evidence interchangeable.<\/p> This double-blind, placebo-controlled randomized trial enrolled 1,106 patients with sepsis at 22 Chinese centers. It did not show clear evidence that thymosin alpha-1 reduced mortality at 28 days. It did not test wellness use in healthy people. Wu et al., 2025 \u2014 TESTS randomized phase 3 sepsis trial<\/a><\/p> A correction was published on 30 May 2025. Both the main report and correction are linked so readers can consult the complete publication record. BMJ, 30 May 2025 \u2014 Correction to the TESTS trial<\/a><\/p> An open-label phase 2 study of 30 patients with gastric or gastroesophageal-junction cancer reported pathological responses after treatment involving several medicines, including thymalfasin. Without a randomized comparison isolating thymalfasin, the study cannot establish how much it contributed. It is not evidence for cancer prevention. Xu et al., 2026 \u2014 GATES prospective gastric cancer study<\/a><\/p> The Thai FDA database displays ZADAXIN, registration 1C 94\/49(NB)<\/strong>, with thymalfasin (thymosin alpha1), sterile powder, manufacturer PATHEON ITALIA S.p.A in Italy, and DKSH (Thailand) Ltd as license holder. Thai FDA \u2014 ZADAXIN, 1C 94\/49(NB); database dated 30 June 2025<\/a><\/p> The database is dated 30 June 2025.<\/strong> Finding this entry does not confirm today\u2019s registration status, availability, or the authenticity of another seller\u2019s T\u03b11 vial. Indications in foreign product information should not automatically be described as Thai-approved indications.<\/p> Check the label, trade name, manufacturer, formulation, batch number and matching documentation. Thymalfasin studies and a ZADAXIN registration do not verify another brand\u2019s quality or effects. A research label or analytical certificate alone does not establish authorization for human use.<\/p> ZADAXIN information lists hypersensitivity as a contraindication and includes important restrictions for people deliberately immunosuppressed, such as transplant recipients. Immune-related treatment requires assessment of the condition and current medicines; more immune stimulation is not automatically beneficial. BPOM Indonesia \u2014 ZADAXIN product information<\/a><\/p> Thymalfasin refers to synthetic thymosin alpha-1. ZADAXIN is one trade name; each product still needs separate identification.<\/p> They should not be treated as interchangeable. The names do not identify the same substance, and evidence cannot be transferred between them.<\/p> Yes. Entry 1C 94\/49(NB) appears in the Thai FDA database dated 30 June 2025. This does not confirm current status or an individual seller\u2019s product.<\/p> The cited studies involve specific patient groups. They do not establish those general benefits or the effects of every brand.<\/p> For questions about names, labels or documents, contact LINE: @musclestationth<\/a>. Personal treatment decisions require a qualified healthcare professional.<\/p> Information checked: 11 September 2026. Educational information; no seller\u2019s product or batch has been authenticated.<\/p>","protected":false},"excerpt":{"rendered":" Thymosin alpha-1 (T\u03b11) is a 28-amino-acid peptide involved in immune-response regulation. Its synthetic form is called thymalfasin; ZADAXIN is one trade name. Findings in specific patient groups do not establish general immune-boosting or anti-aging 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Alpha-1 \u0e2b\u0e23\u0e37\u0e2d T\u03b11 \u0e40\u0e1b\u0e47\u0e19\u0e40\u0e1b\u0e1b\u0e44\u0e17\u0e14\u0e4c 28 \u0e01\u0e23\u0e14\u0e2d\u0e30\u0e21\u0e34\u0e42\u0e19\u0e17\u0e35\u0e48\u0e40\u0e01\u0e35\u0e48\u0e22\u0e27\u0e02\u0e49\u0e2d\u0e07\u0e01\u0e31\u0e1a\u0e01\u0e32\u0e23\u0e1b\u0e23\u0e31\u0e1a\u0e01\u0e32\u0e23\u0e15\u0e2d\u0e1a\u0e2a\u0e19\u0e2d\u0e07\u0e02\u0e2d\u0e07\u0e20\u0e39\u0e21\u0e34\u0e04\u0e38\u0e49\u0e21\u0e01\u0e31\u0e19 \u0e23\u0e39\u0e1b\u0e41\u0e1a\u0e1a\u0e2a\u0e31\u0e07\u0e40\u0e04\u0e23\u0e32\u0e30\u0e2b\u0e4c\u0e40\u0e23\u0e35\u0e22\u0e01\u0e27\u0e48\u0e32 thymalfasin \u0e41\u0e25\u0e30\u0e21\u0e35 ZADAXIN \u0e40\u0e1b\u0e47\u0e19\u0e0a\u0e37\u0e48\u0e2d\u0e01\u0e32\u0e23\u0e04\u0e49\u0e32\u0e2b\u0e19\u0e36\u0e48\u0e07 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it the same as thymosin beta-4 or TB-500?<\/h2>
What do human studies show?<\/h2>
TESTS, 2025: sepsis outcomes<\/h3>
GATES, 2026: one component of cancer treatment<\/h3>
Is there a Thai registration record?<\/h2>
What should be checked for an actual product?<\/h2>
Frequently asked questions<\/h2>
Are thymosin alpha-1 and thymalfasin the same name?<\/h3>
Can thymosin alpha-1 replace TB-500?<\/h3>
Is ZADAXIN listed in the Thai database?<\/h3>
Are general immune-boosting and anti-aging benefits established?<\/h3>
Related reading<\/h2>
General information enquiries<\/h2>
Primary sources<\/h2>