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  1. J

    Help with free test levels

    Are there ways to increase free test? My doc is stuck on me getting down to 900 at my trough level. Overall she has lowered me down .05ml twice. I inject twice a week. Now injecting 120mg test cyp Total in a week, was at 160, then 140. At 160 I was at 1200 w/26 free. 140mg was 1000 and 22 free...
  2. J

    Women's hormones

    Does anyone have any lady friends that do TRT or HRT that have found a reliable site like this one? Asking for my wife, there seems to be a lot more to female test use and blood work. We still have a lot of questions Thank you!
  3. J

    TRT with seasonal allergy immunotherapy

    I am about a year into TRT. On top of TRT I started seasonal allergy sublingual (drops) immunotherapy about 2 months ago. It seems as if this affecting me mentally, also my Test numbers were cut in half. I believe that my allergies increase my anxiety and this is why I went down this road. I...
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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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