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    Email Newsletter Links Broken

    I received your newsletter and wanted to read several of "This Week's Highlights" but every click on the "Read More" link leads to a 404 Oops! We ran into some problems. The requested page could not be found. Further, when I pasted in the post title I was interested in, every time there were...
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    Lost Physical Libido

    Until I was a out 45 I had a strong physical drive that would remind me almost constantly in the groin area where I would have loved to have intercourse several times a day. Now at 49, I still think about sex frequently, but I have zero physical drive behind it. Absolutely nothing going on in...
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    Hematoma following subQ injection

    My last T injection, using a 25G x 5/8, was not a normal experience. Pulling the needle out gave a wee shot of bright red blood and then within minutes I had a nice big hematoma, at least 1.5" in diameter. Now the area is way bruised. The injection site was about an inch to the side of my navel...
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    Failing to Finish

    Hi folks, I just turned 49, fit, ideal weight, no medical issues aside from low T. I'm current injecting T & HCG twice per week subQ and taking Anastrozole 3x per week. Labs show my T levels are 800-1100 and my E at 20. I've also recently started 2.5mg of Tadalafil a day to try & boost drive a...
TRT Hormone Predictor Widget

TRT Hormone Predictor

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.

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

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