TRT

Unmasking Risks: Prevalence of Erythrocytosis Among Men on T-Therapy Across Different Formulations

Sep 17

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* The study population included men with (i) early morning total testosterone (TT) using LCMS, (ii) free T (FT) measured using equilibrium dialysis, and (iii) who were started on TTH. * Men using intramuscular or topical testosterone face a...

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Factors Involved in Sex Drive and Erection Quality: Beyond Testosterone

Aug 31

The Complex Neurochemistry of Male Sexual Function: Understanding the Biological Foundations of Desire and Performance Male sexual function represents one of the most intricate orchestrations of neurochemical, hormonal, and physiological...

Blood Tests Erectile Dysfunction Hormones Men's Health Sex drive TRT

The Manhood Rx: Every Man's Guide to Improving Sexual Health and Overall Wellness

Aug 19

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https://www.amazon.com/Manhood-Rx-Improving-Overall-Wellness/dp/1538166593 A top urologist’s prescription for better sexual health and overall wellness. According to research studies, men with health problems, and more specifically sexual...

Erectile Dysfunction Men's Health Sex drive TRT

Learn Quickly About Testosterone Deficiency and Its Treatments

Aug 14

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I hope you enjoy this part 1. Yes, it is almost 2 hours long but I concentrated everything I know so that you do not have to read for hours. What is low testosterone (hypogonadism) and how is it diagnosed? Low testosterone, or hypogonadism...

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Testosterone Therapy in Pre- and Post-Menopausal Women: Deep Dive

Aug 08

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Testosterone Therapy in Pre- and Post-Menopausal Women Testosterone Therapy for Women: Indications and Evidence (2010–2025) Low Sexual Desire (HSDD) and Sexual Function Evidence: Multiple randomized controlled studies (RCTs) and meta-analyses...

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Comprehensive Analysis of Testosterone Carrier Oils: Formulations, Clinical Implications, and Emerging Developments

Aug 02

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The selection of carrier oils in testosterone formulations represents a critical yet underappreciated aspect of hormone replacement therapy. This report synthesizes data from pharmaceutical manufacturers, clinical reports, and patient experiences...

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Testosterone clinics - Do they know what they are doing?

Jul 31

* They discuss how these clinics often bypass proper lab testing, ignore fertility risks, and prioritize quick prescriptions over patient safety—all under the buzzword of “optimization.” Testosterone therapy is trending—but are clinics...

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427-Page Illustrated Book: Beyond Testosterone

Jul 28

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I am very pleased to announce that I finally finished my full color 427-page booK: Nelson Vergel's "Beyond Testosterone: The Illustrated Guide" and the associated free online resource at Excelmale.com serve as comprehensive guides to...

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Top Facts You Need to Know Before Starting TRT

Jul 25

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Embarking on the path of Testosterone Replacement Therapy (TRT) often evokes a blend of enthusiasm and concern among men. The allure of renewed vigor, heightened sexual desire, and robust muscle growth is enticing. However, there are a lot of...

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How to Lower High Hematocrit Caused by Testosterone Replacement Therapy (TRT)

Jul 23

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High Hematocrit Caused by Testosterone Replacement Therapy By Nelson Vergel, B.S.Ch.E., M.B.A. High hematocrit occurs when there is an excessive production of red blood cells. High hematocrit can cause the blood to become very viscous or...

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What is the Optimum TRT Dose for Muscle Growth? : Nelson Vergel Reviews the Data

Jul 22

Landmark Study Reveals How Different Testosterone Doses Affect Muscle, Fat, and Health Markers in Young Men A deep dive into one of the most influential studies on testosterone dosing reveals key takeaways for anyone interested in hormone...

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Understanding Testosterone Replacement Therapy and Managing Side Effects

Jul 22

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13 min summary podcast: Introduction Hello everybody, Nelson Vergel here with ExcelMail.com. ExcelMail.com is a four-year-old forum, online site, with more than 14,000 members. Some of them are doctors, pharmacists, dietitians, exercise...

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TRT Hormone Predictor Widget

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038