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  1. K

    Anxious about starting TRT

    Has anyone been anxious about starting TRT? I have suffered from Anxiety for years and the prospect of life long TRT injections as well as side effects, scares me a lot! I am only 33 so I want to go on HCG to stay fertile, but that worries me because of the likely increase in estradiol. Then I...
  2. K

    Intro

    Hi there, Just wanted to quickly introduce myself. I am Alex. 33 from New Zealand. Got low testosterone and my doctor wants me to start TRT. He has got no experience with HCG, but because I want to stay fertile, he asked me to do some research into it and that brought me here. I find this...
  3. K

    Testosterone plus HCG in subQ injection

    Hi, I read that study on here that says 500IU of HCG every 2 days will maintain fertility while on testosterone. Has anyone tried to split their Testosterone shots into 3 weekly shots, combined with HCG in one injection and put it in subQ? I have seen the video where Nelson injects that...
  4. K

    Advice Needed for Testosterone Therapy

    I am 33 years old and have a testosterone level of 394 ng/dL. Estradiol 57 pg/mL. I am 6’1” and 229 pounds (pretty high bodyfat percentage). I live in New Zealand and a lot of doctors here have got no idea on how to treat this properly. My doctor initially didn't want to test my Testosterone...
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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