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  1. S

    Travelling and doseage help

    Hi all, I'll be travelling from Australia to the US in a few days time and am abit worried on how I'll stick with my protocol. Currently on 125mg/wk divided into 2 dosages (mon/thurs). I won't be able to take my current vial with me but will be taking a vial of reandron 1090 which I believe...
  2. S

    Coming off Anastrazole. Possible low E2 symptoms?

    Protocol up until now: - 125mg TestE divided into 2 injections per week - 0.125mg Anastrazole 24 hours post each injection. Libido has been shit, dryish skin, frequent night urination. Thought I would skip a dose potentially remove the AI all together, however, I am extremely paranoid about...
  3. S

    Possible reasons for really bad quad PIP?

    Hi All, looking for some advice. What could be the reason for all-of-a-sudden getting really bad PIP after my twice-weekly quad injections. I'm using a 25g 1in needle, and have been for a while with no issues. Lately, I have been getting terrible PIP that become almost debilitating to my...
  4. S

    Travelling while on TRT

    Hey all, Looking for opinions on the following. I have to travel outside of my country (Australia) for 10 days coming up. I'm currently on TRT at 125mg of TestE split into 2 injections per week. Also taking `0.25mg anastrazole 24 hours after each jab. I have been legally prescribed TRT...
  5. S

    Recomendations for adjusting AI dosage

    Hi all, hoping someone can help me with my most recent blood work results. My current protocol is 125mg per week of TestE split into two weekly doses (Mon, Thurs), followed by 0.25mg Anastrozole 24 hours after injection. Also on 50mcg of Thyroxine daily. Results: (ref range) Total T: 911 ng/dl...
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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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