Testagen, as the name implies, is a testosterone boosting bioregulatory peptide. Like many short peptides, Testagen crosses both the cell and nuclear membranes to interact directly with DNA. Research shows that Testagen is able to stimulate the anterior pituitary gland to increase the release of thyroid stimulating hormone and, ultimately, T3 and T4 thyroid hormones. It does this even in the setting of no hypophyseal support, suggesting that it directly alters the expression patters of proteins in the pituitary gland, a function that may explain its effects on testosterone levels. Finally, because Testagen 20mg affects the pituitary gland, it has impacts on hemostasis and immunity, though these are less pronounced than its effects on thyroid stimulating hormone levels and testosterone.  

The thyroid gland, a part of the endocrine system, is important to metabolism, growth, and reproductive function. Dysfunction of the thyroid gland can lead to difficulties with memory and concentration, changes in heart rate, difficulty regulating body temperature, weight gain, high cholesterol levels, and trouble with reproductive function. One of the many reasons that the thyroid gland malfunctions is due to failure of the pituitary gland, the gland that regulates it. In this case, levels of another hormone, TSH, decline and do not stimulate the thyroid gland. There are a number of reasons why this may happen, but research in birds suggests that the pituitary gland can be stimulated, directly, but administration of Testagen 20mg. Testagen appears to alter DNA expression profiles in the pituitary gland to raise TSH secretion. Studies show that this results in near-normal thyroid hormone levels[1], [2].

Testagen and Tesosterone Levels

Research suggests that Testagen 20mg may help to normalize testosterone levels and thus testicular function. This may be especially pertinent to aging men suffering from declines in testosterone levels and related problems like lower bone density, decrease muscle mass, erectile dysfunction, inhibited libido, problems with cognition, and decreased energy levels. It is important to note that the benefits of Testagen 20mg on the pituitary gland may occur even if the dysfunction is caused by tumors, medications (e.g. steroids, morphine) infection, and or autoimmune conditions. Right now, research is in its early stages so it is difficult to delineate the specific settings in which Tesagen does and does not impact the pituitary gland. Some or all of the benefit that Testagen has on testosterone levels may be directly linked to its effects on thyroid hormone levels. Research shows that hypothyroidism can lead to low testosterone levels that are subsequently normalized with thyroid hormone replacement therapy. Thyroid hormone replacement has also been shown to normalize free testosterone concentrations[3]. It stands to reason then that Testagen’s benefits on testosterone levels may, in fact, be attributable to its effects on thyroid hormone levels. More research needs to be completed in this area. Source: Fronteiras em endocrinologia

Testagen 20 mg e o sistema imunológico

Research by Dr. Vladimir Khavinson has shown that peptides are capable of penetrating both cell and nuclear membranes to interact directly with DNA[4]. This epigenetic regulation of gene expression extends to the genes responsible for cell differentiation. Testagen 20mg has been shown by Dr. Khavinson to help push stem cells to differentiate into cells of the immune system, indicating that the peptide could have potential positive benefits on immune function[5]. This function may be especially useful in elderly individuals experiencing senescence and loss of cell differentiation secondary to chromatin condensation. By virtue of its effects on the immune system, Testagen may be said to have anti-aging properties. By improving immune function and immune surveillance, Testagen could help to reduce the risk of a number of autoimmune disease as well as cancers that tend to increase in prevalence with age. It is important to note that immune function is often tied to thyroid function and that low thyroid hormone levels are often associated with increased risk of infection and poor immunity. The impact of Testagen 20mg on thyroid hormone levels may be a secondary contributor to its beneficial effects on immune function.

Testagen e coagulação do sangue

O Dr. Boris Kuznik, que agora está aposentado, fez alguns dos trabalhos preliminares com o Dr. Khavinson sobre o papel do testágio e peptídeos semelhantes no sistema sanguíneo. Sua especialidade de coagulação, que não é uma função do sistema imunológico em si, mas está intimamente relacionada e é, em certa medida, influenciada pela glândula tireóide, o levou a explorar a capacidade do testador de melhorar a hemostasia (coagulação do sangue). Pesquisas iniciais sugerem que o testágio é útil nesse cenário e pode, de fato, ser capaz de normalizar a hemostasia em certas condições da doença.

Resumo da teste

Testagen is a short, bioregulatory peptide that has primary effects on the pituitary gland and ultimately the thyroid gland. As a result of its action on these two glands, Testagen is capable of normalizing testosterone production as well as thyroid hormone production in certain settings. By normalizing thyroid hormone production, Testagen has a moderate impact on the immune system. In these cases, Testagen can be conveniently thought of as resetting the pituitary gland to a more youthful state and thereby acting as an anti-aging peptide. Testagen is being researched for its ability to boost testosterone levels, improve thyroid hormone function, and stimulate the differentiation of stem cells in the immune system to improve immune function. Testagen exhibits minimal side effects, good oral and excellent subcutaneous bioavailability in mice. Per kg dosage in mice does not scale to humans. Testagen for sale at

The above literature was researched, edited and organized by Dr. E. Logan, M.D. Dr. E. Logan holds a doctorate degree from Case Western Reserve University School of Medicine and a B.S. in molecular biology.

Vladimir Khavinson is a Professor, President of the European region of the International Association of Gerontology and Geriatrics; Member of the Academias de Ciências Médicas russas e ucranianas; Main gerontologist of the Health Committee of the Government of Saint Petersburg, Russia; Director of the Saint Petersburg Institute of Bioregulation and Gerontology; Vice-president of Gerontological Society of the Academia Russa de Ciências; Head of the Chair of Gerontology and Geriatrics of the North-Western State Medical University, St-Petersburg; Colonel of medical service (USSR, Russia), retired. Vladimir Khavinson is known for the discovery, experimental and clinical studies of new classes of peptídeo bioregulators as well as for the development of bioregulating peptide therapy. He is engaged in studying of the role of peptides in regulation of the mechanisms of ageing. His main field of actions is design, pre-clinical and clinical studies of new peptide Geroprotetores. A 40-year-long investigation resulted in a multitude of methods of application of peptide bioregulators to slow down the process of ageing and increase human life span. Six peptide-based pharmaceuticals and 64 peptide food supplements have been introduced into clinical practice by V. Khavinson. He is an author of 196 patents (Russian and international) as well as of 775 scientific publications. His major achievements are presented in two books: “Peptides and Ageing” (NEL, 2002) and “Gerontological aspects of genome peptide regulation” (Karger AG, 2005). Vladimir Khavinson introduced scientific specialty “Gerontology and Geriatrics” in the Russian Federation on the governmental level. Academic Council headed by V. Khavinson has oversighted over 200 Ph.D. and Doctorate theses from many different countries. Prof. Vladimir Khavinson is being referenced as one of the leading scientists involved in the research and development of Testagen. In no way is this doctor/scientist endorsing or advocating the purchase, sale, or use of this product for any reason. There is no affiliation or relationship, implied or otherwise, between

1. B. I. Kuznik, A. V. Pateiuk, N. S. Rusaeva, L. M. Baranchugova, and V. I. Obydenko, “[Effects of hypophyseal Lys-Glu-Asp-Gly and Ala-Glu-Asp-Gly synthetic peptides on immunity, hemostasis, morphology and functions of the thyroid gland in neonatally hypophysectomized chicken and one-year-old birds],” Patol. Fiziol. Eksp. Ter., não. 1, pp. 14-18, março de 2010.
2. B. I. Kuznik, A. V. Pateiuk, N. S. Rusaeva, L. M. Baranchugova, and V. I. Obydenko, “[Effects of Lys-Glu-Asp-Gly and Ala-Glu-Asp-Gly peptides on hormonal activity and thyroid morphology in hypophysectomized mature and old birds],” Adv. Gerontol. Uspekhi Gerontol., vol. 24, não. 1, pp. 93–98, 2011.
3. A. W. Meikle, “The interrelationships between thyroid dysfunction and hypogonadism in men and boys,” Thyroid Off. J. Am. Thyroid Assoc., vol. 14 Suppl 1, pp. S17-25, 2004, doi: 10.1089/105072504323024552.
4. L. I. Fedoreyeva, I. I. Kireev, V. K. Khavinson, and B. F. Vanyushin, “Penetration of short fluorescence-labeled peptides into the nucleus in HeLa cells and in vitro specific interaction of the peptides with deoxyribooligonucleotides and DNA,” Biochem. Biokhimii͡a, vol. 76, não. 11, art. não. 11, novembro de 2011, doi: 10.1134/s00062979111110022.
5. V. Khavinson, N. Linkova, A. Diatlova, and S. Trofimova, “Peptide Regulation of Cell Differentiation,” Stem Cell Rev. Rep., vol. 16, não. 1, pp. 118–125, fevereiro de 2020, doi: 10.1007/S12015-019-09938-8.

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