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  1. djpreef

    How long for labs after dose change?

    I've been on TRT for four years. All this time, I've never gotten the libido benefits, real energy, etc., that others report. I've been on 120mg a week split into two injections. I was on HCG for years, ran out and didn't get more and noticed zero difference, so I'm not doing that anymore...
  2. djpreef

    High DHEA-S a problem?

    Just got my labs back with some surprises. It's two weeks before my followup appointment with Defy and I'm not quite sure what to do. My DHEA-S was low when I started with them three months ago and I've been on a quarter of a sublingual troche (25mg) morning and evening. Now my DHEA-S is...
  3. djpreef

    Getting started, finally...

    Hey guys. After waiting six months for my doctor to be satisfied with my estrogen/estradiol numbers, I'm finally getting started. He tried me on a compounded topical that didn't seem to do much of anything except make things worse. So yesterday he wrote me a script for 12 ml of 100mg/ml, .5...
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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