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Thymalin with Thymulin

Mechanism-tag overlap and published literature for Thymalin and Thymulin, pulled verbatim from each Kalios compound profile. Kalios is a literature reference, not a recommendation.

Mechanism overlap

Mechanism tags are verbatim labels on each compound's profile. Generic tags ("peptide", "small-molecule", "research-chemical") are excluded from this overlap view. Tags are descriptive — not an inference about combined effect.

THYMALIN THYMULIN 1 UNIQUE TAGS 1 UNIQUE TAGS 0 SHARED
Thymalin unique thymic-polypeptide-bioregulator-complex
Shared none
Thymulin unique thymic-hormone-zinc-dependent-nonapeptide

Co-administration notes from the literature

Verbatim summary text pulled from each compound's profile data. Researchers studying Thymalin and Thymulin have published these mechanism-level observations. Not a co-administration recommendation.

Evidence level: mechanistic only

Polypeptide-complex thymic extract. Mechanistically overlapping but molecularly distinct. Some practitioners cycle; combined-use evidence is anecdotal.

Quick facts

Thymalin

RouteIM (most common) / SubQ
Half-lifeNot listed
FDA statusNot approved (US)
WADANot specifically named — caution for athletes
Full Thymalin profile →

Thymulin

RouteSubQ / IM (research)
Half-lifeMinutes (plasma)
FDA statusNot approved
WADANot specifically named (S2 umbrella possible)
Full Thymulin profile →

Literature table

Classified references from each compound profile. Click a column header to sort. Click a PMID to open PubMed. Findings are quoted verbatim from each profile's literature_summary; nothing here is added or interpreted.

Year Compound Source Finding
2021ThymalinKhavinson VK, Kuznik BI, Tarnovskaya SI, Linkova NS. Results and Prospects of Using Activator of Hematopoietic Stem Cell Differentiation in Complex Therapy for Patients with COVID-19. Stem Cell Rev Rep. 2021 Feb;17(1):285-290. doi: 10.1007/s12015-020-10087-6. PMID: 33575961. (Re… PMID 33575961human study
2020ThymalinKhavinson V, Linkova N, Dyatlova A, Kuznik B, Umnov R. Peptides: Prospects for Use in the Treatment of COVID-19. Molecules. 2020 Sep 24;25(19):4389. doi: 10.3390/molecules25194389. PMID: 32987757. (Computational and mechanistic review of Khavinson short peptides — including the… PMID 32987757human study
2020ThymalinKhavinson VK, Kuznik BI, Volchkov VA, Rukavishnikova SA, Titova ON, Akhmedov TA, Trofimova SV, Ryzhak GA, Potyomkin VV, Saginbaev UR. Effect of thymalin on adaptive immunity in complex therapy for patients with COVID-19. Klinicheskaya Meditsina (Russian Journal). 2020;98(8):593-…human study
2020ThymalinLukyanov SA, Kuznik BI, Shapovalov KG, Khavinson VK, Smolyakov YN, et al. Thymalin as a Potential Alternative in the Treatment of Severe Acute Respiratory Infection Associated with SARS-CoV-2. Int J Immunol Immunother. 2020;7:055. (Severe-COVID-19 case treated with Thymalin 10 m…human study
2003ThymalinKhavinson VKh, Morozov VG. Peptides of pineal gland and thymus prolong human life. Neuro Endocrinol Lett. 2003 Jun-Aug;24(3-4):233-240. PMID: 14523363. (266-patient elderly geroprotective trial; 6–8-year follow-up; mortality reductions of 2.0-fold for Thymalin alone, 2.5-fold fo… PMID 14523363human study
1986ThymalinKuznik BI, Makhakova GCh, Morozov VG, Pisarevskaia LI, Khavinson VKh. [Effect of thymalin on thrombocyte aggregation and the antiaggregation activity of the vascular wall in intact and thymectomized rats]. Biull Eksp Biol Med. 1986 Aug;102(8):200-202. Russian. PMID: 3754821. (Ea… PMID 3754821preclinical, in vivo
1982ThymalinAnisimov VN, Khavinson VKh, Morozov VG. Carcinogenesis and aging. IV. Effect of low-molecular-weight factors of thymus, pineal gland and anterior hypothalamus on immunity, tumor incidence and life span of C3H/Sn mice. Mech Ageing Dev. 1982 Jul;19(3):245-258. doi: 10.1016/0047-63…preclinical, in vivo
2022ThymalinAvolio F, Martinotti S, Khavinson VK, Esposito JE, Giambuzzi G, Marino A, Mironova E, Pulcini R, Robuffo I, Bologna G, Simeone P, Lanuti P, Guarnieri S, Trofimova S, Procopio AD, Toniato E. Peptides Regulating Proliferative Activity and Inflammatory Pathways in the Monocyte/Macr… PMID 35408963preclinical, in vitro
2020ThymalinKhavinson VK, Linkova NS, Kvetnoy IM, Polyakova VO, Drobintseva AO, Kvetnaya TV, Ivko OM. Thymalin: Activation of Differentiation of Human Hematopoietic Stem Cells. Bull Exp Biol Med. 2020 Nov;170(1):118-122. doi: 10.1007/s10517-020-05016-z. PMID: 33237528. (In vitro demonstrati… PMID 33237528preclinical, in vitro
2016ThymalinLinkova NS, Drobintseva AO, Orlova OA, Kuznetsova EP, Polyakova VO, Kvetnoy IM, Khavinson VK. Peptide Regulation of Skin Fibroblast Functions during Their Aging In Vitro. Bull Exp Biol Med. 2016 May;161(1):175-178. doi: 10.1007/s10517-016-3370-x. PMID: 27259484. (Khavinson short… PMID 27259484preclinical, in vitro
2017ThymalinKhavinson V, Popovich I. Short Peptides Regulate Gene Expression, Protein Synthesis and Enhance Life Span. In: Vaiserman AM (ed.). Anti-aging Drugs: From Basic Research to Clinical Practice. RSC Drug Discovery Series No. 57. Royal Society of Chemistry; 2017. Chapter 20, pp. 496–…mechanism / discovery
2016ThymalinKhavinson VK, Lin'kova NS, Tarnovskaya SI. Short Peptides Regulate Gene Expression. Bull Exp Biol Med. 2016 Nov;162(2):288-292. doi: 10.1007/s10517-016-3596-7. PMID: 27909961. (Khavinson group's short-peptide DNA-binding / gene-expression-regulation hypothesis, the mechanistic f… PMID 27909961mechanism / discovery
2013ThymulinMocchegiani E, Romeo J, Malavolta M, Costarelli L, Giacconi R, Diaz LE, Marcos A. Zinc: dietary intake and impact of supplementation on immune function in elderly. Age (Dordr). 2013;35(3):839-860. PMID: 22223033. PMID 22223033human study
1995ThymulinHadden JW. The treatment of zinc deficiency is an immunotherapy. Int J Immunopharmacol. 1995;17(9):697-701. PMID: 8582785. PMID 8582785human study
2007ThymulinGoya RG, Reggiani PC, Vesenbeckh SM, et al. Thymulin gene therapy prevents the reduction in circulating gonadotropins induced by thymulin deficiency in mice. Am J Physiol Endocrinol Metab. 2007;293(1):E182-E187. PMID: 17374695. PMID 17374695preclinical, in vivo
2006ThymulinReggiani PC, Hereñú CB, Rimoldi OJ, et al. Gene therapy for long-term restoration of circulating thymulin in thymectomized mice and rats. Gene Ther. 2006;13(15):1214-1221. PMID: 16645618. PMID 16645618preclinical, in vivo
1996ThymulinSafieh-Garabedian B, Poole S, Allchorne A, Kanaan S, Saadé NE, Woolf CJ. Zinc reduces the hyperalgesia and upregulation of NGF and IL-1β produced by peripheral inflammation in the rat. Neuropharmacology. 1996;35(5):599-603. PMID: 8887968. PMID 8887968preclinical, in vivo
1993ThymulinAliev M, et al. Restorative effect of short term administration of thymulin on thymus-dependent antibody production in restraint-stressed mice. Immunopharmacol Immunotoxicol. 1993;15(4):369-378. PMID: 8407057. PMID 8407057preclinical, in vivo
1975ThymulinBach JF, Dardenne M, Pleau JM, Bach MA. Isolation, biochemical characteristics, and biological activity of a circulating thymic hormone in the mouse and in the human. Ann N Y Acad Sci. 1975;249:186-210. PMID: 1093427. PMID 1093427preclinical, in vivo
2014ThymulinReggiani PC, Schwerdt JI, Console GM, Roggero EA, Dardenne M, Goya RG. Physiology and therapeutic potential of the thymic peptide thymulin. Curr Pharm Des. 2014;20(29):4690-4696. PMID: 24588820. PMID 24588820research article
1998ThymulinBrown OA, Sosa YE, Bolognani F, Goya RG. Thymulin stimulates prolactin and thyrotropin release in an age-related manner. Mech Ageing Dev. 1998;104(3):249-262. PMID: 9818732. PMID 9818732research article
1992ThymulinHadden JW, Malec PH, Coto J, Hadden EM. Thymic involution in aging. Prospects for correction. Ann N Y Acad Sci. 1992;673:231-239. PMID: 1485719. PMID 1485719research article
1988ThymulinPleau JM, Pasdeloup N, Dardenne M, Bach JF, et al. NMR study of a lymphocyte differentiating thymic factor. An investigation of the Zn(II)-nonapeptide complexes (thymulin). FEBS Lett. 1988;229(2):425-429. PMID: 3356698. PMID 3356698research article
1984ThymulinGastinel LN, Dardenne M, Pleau JM, Bach JF. Studies on the zinc binding site to the serum thymic factor. Biochim Biophys Acta. 1984;797(2):147-155. PMID: 6538097. PMID 6538097research article

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Frequently asked

Have Thymalin and Thymulin been studied together?

Researchers have published mechanistic-level co-administration discussion of Thymalin and Thymulin. No human co-administration trials are catalogued in the Kalios profiles. The pair page lists each compound's classified literature; full citations sit on each individual profile.

What mechanisms do Thymalin and Thymulin share?

Thymalin and Thymulin do not share a specific mechanism tag on their Kalios profiles. They appear on the same pair page because at least one profile lists the other in its co-administration data.

What is the FDA status of Thymalin and Thymulin?

Thymalin: Not approved (US). Thymulin: Not approved. FDA-status text is pulled verbatim from each compound profile. See /fda-pcac-2026.html for the broader FDA Pharmacy Compounding Advisory Committee context.

Where can I find the full research on Thymalin and Thymulin?

Full citation lists, dosing tables from the literature, reconstitution data, and the FDA / WADA status are on the individual compound profiles: the Thymalin profile and the Thymulin profile. The Kalios Stack Research Tool hub lists every compound covered.

Last updated: April 2026