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  1. J

    Tadalafil timing

    Good morning, So I am about to start taking a daily Tadalafil dose (starting at 2.5) and wondering when the best time of day is to take it. Any input /advice from guys who are currently taking it are much appreciated! What works best for you guys?
  2. J

    Testosterone leak?

    Good day everyone, I have been wondering that if I bleed after a subq injection, does some of the test come back out with the blood? Kind of a silly question but have always wondered.
  3. J

    EOD injection dosing

    Hello all, I am about to move to EOD (every other day) injections and have a question about how to properly split up the amount of testosterone for each injection. I currently take 120mg of cypionate per week. I am on test only (no hcg, ai, etc). Is anyone else currently running a true EOD...
  4. J

    1st post need advice

    Hello all, New to the site and would really appreciate any input you all have. I have been on TRT for 3 months now and have had mixed feelings about it. On one hand, I have more energy and workouts feel much easier. On the flip side I feel different psychologically. The best way I can...
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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