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  1. M

    Alternatives to Defy’s pharmacies

    My wife and I both use defy. Me for TRT and her for HRT. The last couple of times we have ordered from their pharmacies we have had problems. The pharmacy they are using for her estrogen will only ship a 30-45 day supply. That would be fine if we didn’t find out 2 weeks after placing an order...
  2. M

    Ups and downs under new protocol - normal?

    I had been doing injecting 40mg t-cyp eod for 6 months. During my 6 month follow-up labs, my SBHG had climbed from 48nmol/L to 62 nmol/L (range 19.3-76.4). My free T was 23.9 (range 7.2-24 pg/mL), total T was 1081 (range 264-916 ng/dL) and Estradiol, Sensitive was 18.3 (range 8-35 pg/mL). As a...
  3. M

    e2 "normal" but not sure it feels that way

    First, thanks everyone, this site has been a great resource!! My current protocol is Injecting 80mg of Test C and 400IU of HCG every 3.5 days. I inject on Sunday morning and Wednesday night. Prior to the most recent blood work I was taking 25mg of DHEA/Prog nightly. My last labs were drawn on...
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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