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  1. Montrealer

    I am on Cypionate, do I NEED hCG?

    Guys, many of you are on T Cyp + hCG and I want to understand why. I'm 54, 7th month on TRT. Started with Testim gel and switched to injections recently. Generally healthy and fit. When I was on Testim, my TT was around 700-800 Now I take 50mg Cyp and 0.25 Anastrozole every third day. I don't...
  2. Montrealer

    E2 control while on transdermal T

    Hi guys, My question is related to use of Anastrozole. Specifically, the starting dose and frequency. I'm 54 y.o., fit, weighing 160, on TRT for 5 months (Testim, 2 tubes daily), below are my latest numbers. My urologist said my free T is low and the T/E2 ratio is bad, so he prescribed...
  3. Montrealer

    Need Advice on switching from Testim to injectables

    Hi guys, first of all, thanks a lot for sharing your experience and knowledge - it is a great help to so many. For sure it was an encouragement to me in my hour of desperation :) Here's my question in the context. I am new to TRT, 53 yo, generally healthy and fit. I went to see my urologist...
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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