This document synthesizes key findings on the use of Human Chorionic Gonadotropin (hCG) in men, either as an adjunct to Testosterone Replacement Therapy (TRT) or as a standalone monotherapy. By mimicking the body's Luteinizing Hormone (LH), hCG...
By Nelson Vergel | ExcelMale.com | Updated December 2025 Introduction Should you take an aromatase inhibitor with testosterone replacement therapy? This question has sparked considerable debate in men's health circles, with some clinics routinely...
The Libido Misconception For most men, a lagging sex drive triggers an immediate, single-minded thought: "It must be my testosterone." While T is a key player in male vitality, this assumption often misses the mark entirely. Libido is far more...
Many men begin testosterone replacement therapy expecting their sexual function to improve across the board—better libido, stronger erections, enhanced satisfaction. And while TRT often delivers significant benefits for desire and overall sexual...
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Today we are joined by Dr. Rahul Mehan, a renowned urologist, who sheds light on the impact of Ozempic on sexual function, particularly in relation to erectile dysfunction. He is also the founder of Snip City, which specializes in vasectomy...
What's the best HCG dosing protocol for men on TRT? Whether you're using HCG to maintain fertility, prevent testicular atrophy, or preserve intratesticular testosterone, the dosing frequency matters. Should you inject daily, every other day, or...
Experiencing delayed orgasm or anorgasmia on TRT? Many men on testosterone therapy report difficulty reaching climax despite normal erections and libido. This frustrating issue is more common than most realize—and it's often treatable once you...
Can statins cause erectile dysfunction? This is a common concern for men taking cholesterol-lowering medications. The research is mixed—some studies suggest statins may actually improve erectile function by enhancing blood flow, while others...
What's the optimal HCG dose to preserve fertility and testicular size while on testosterone replacement therapy? Two landmark studies provide critical guidance for men seeking to maintain reproductive function during TRT. Research from Baylor...
In this episode, Dr. Brandon & Dr. Morgentaler talk about the off-label use of bremelanotide (Vyleesi/PT-141) in men—its potential benefits for libido/erections, origins, side effects (notably nausea), and how patients often access it via...
Predict estradiol, DHT, and free testosterone levels based on total testosterone
⚠️ Medical Disclaimer
This tool provides predictions based on statistical models and should NOT replace professional medical advice.
Always consult with your healthcare provider before making any changes to your TRT protocol.
ℹ️ Input Parameters
Normal range: 300-1000 ng/dL
Predicted Hormone Levels
Enter your total testosterone value to see predictions
Results will appear here after calculation
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.
