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  1. A

    Sources of injectable Testosterone Undecanoate in the U.S? Compounders?

    Is injectable testosterone undecanoate available in the U.S (aka not clinic-only Aveed)? If so, who can make it? It vaguely appears that Empower may be able to make a mixed-ester combination? Beyond that, I see no way to procure this in the US. Does anyone have an ideas...
  2. S

    Jet Black Stools - Is This A TRT Side Effect?

    I had an incident in which X-rays revealed I had several stools that were backed up. (Which naturally I was totally surprised by this.) I was going #2 fine with no constipation and no diarrhea. I basically felt lower back pain with increased abdominal pressure. My doctor gave me a laxative and...
  3. R

    Low T and depression. could depression tank testosterone?

    for years i was a bit depressed and while time passed i started to feel more depressed until i hit my early 20’s and started to felt low energy, decline in libido, less motivation, more depressed, more brain fog and other depression and low t symptoms. could depression actually made my t go low...
  4. R

    is being underweight actually harming hormones?

    not just testosterone, but lh, shbg igf1, etc. not talking malnourish but something like 6' weighting 152-155. while maintaining a healthy diet.
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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