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  1. K

    Blood test results - not super libido or erections...

    Hi, In may I did blood tests. Results below. (I live in Norway by the way - so that is the reason if you consider the measures unusual). I do not have significant libido or strong erections. What could be the cause? Aprreciate input! B-Hemoglobin: 15.1 (13.5-16.5) B-EVF: 0.46 (0.41-0.51)...
  2. K

    Some questions about HCG and Arimidex

    Hi, Regarding the use of low doses of both HCG and Arimidex while on TRT - and long term effects. - Should you take breaks from HCG use or should it be used continually like testosterone? Is the issue of the Leydig cell becoimng de-sensitized an issue when using a low dose (ie 500 IUs twice a...
  3. K

    What is "missing" in this blood test?

    Hi, I live in Norway and TRT is in the dark ages here (due to "hormone-phobia" etc). Its a challenge to find a good doctor and proper help. Anyway, I recently changed my doctor because the previous one retired. I do not feel as good as I had hoped on my protocol now. My libido is low. What...
  4. K

    Living in Norway, Advice on Lab Tests, Please

    Hi, I am in Norway and have been on Nebido for about 1 year now. I take a weekly injection of about 125 mg a week and Arimidex 0,25mg twice a week. I have not been feeling as good as I had hoped. I asked my doctor, Dr. Purvis, if I could try another type of testosterone instead (Enanthate or...
  5. K

    The ups and downs of my TRT protocol with Nebido

    Hi there! I started TRT with NEBIDO in July 2016. I live in Norway, and Nebido seems to be the preferred method here. There has been many challenges for me the last 6-7 months with fine-tuning my protocol, I hope things will be better for me in the coming months. Let me give you some a brief...
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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