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  1. J

    Year and 1/2 on T now...my wife and I love it...here is what she said.

    I'm 45. It's been a year and a half now since I started my T. Some people say you crash after a year, but I have not experienced this at all. In fact, I feel I keep feeling the benefits more and more over time. I hope it stays that way. Anyway, here is what my wife said about me since I...
  2. J

    TRT almost a year now...suddenly lost all motivation to work out

    I have been on T for almost a year and it has absolutely changed my life! Everything has been going great until lately, I just don't feel like working out anymore. At all. Has anyone experienced this? I do run a stressful business. I'm not sure what it is. I was so consistent in my...
  3. J

    Nelson is right, the shoulder in the best injection site...

    When I first started TRT, I was a noob and went for the leg injections but that did not last long because of the soreness. Then I read all the rage about subQ and started injecting into the fat around my stomach area. What I found was that my free test dropped and my estradiol got to high...
  4. J

    Needle gauge and length...

    I am currently using 1" 25g needles SubQ but would like to try 1/2" needles. I can only find 30g on amazon. Will that work? Anyone have a needle preference or know the best place to buy? My doctor only sends so many needles since I inject twice a week now, so I go through them faster. I just...
  5. J

    Started TRT 10 weeks ago, I was in the hole...now I'm getting better...

    Hello everyone, I'm looking forward to interacting with everyone here. I'm 44 years old and have been on TRT for 10 weeks now. Before I started my Numbers were in the hole, way down there. Testosterone total was 117 L Free testosterone was 23.0 L I'm a business owner so my doctor said my...
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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