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  1. J

    How long does Bacteriostatic water last refrigerated?

    So I have heard various conflicting information regarding this from my clinic and also other clinics and forums for TRT here in the UK. I have a 30ml bottle of Bac water that I have had from November last year, i use it to mix my HCG. People say it only lasts 30 - 60 days when first used? But...
  2. J

    Help with new EOD protocol

    Hi guys, new here from the UK after a long time lurker, I have been on TRT for around 13 months now and was on 37.5mg Test E every 3.5 days, after a lot of ups and downs I decided about a week and half ago to switch to EOD as I am low SHBG of 13nmol/L. I have noticed a massive difference in sex...
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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