switch

  1. S

    Switching from cream to injection

    If you were to switch from cream which has approximately one day half life to cypionate injection, would it make sense to do a higher first dose injection to “preload” ? For example, if your protocol was 50mg twice a week, do 100mg first shot and then 3-4 days later come in with the 50mg and...
  2. A

    E2 Spiking

    Hey all. I have been having issues with my E2 spiking. I am using 17 units test cyp everyday. Would me switching to test prop help with aromatizing? I am a low SHBG guy. My last blood work is a bit inaccurate bc I was using HCG. I since cut out HCG to help with E2 and still am having...
  3. R

    How long before switching from sq to im

    It’s been 4 weeks from increasing my dose from 100mg to 62mg q3.5d schedule. If I wanted to see if i would feel a difference switching from sq to I’m. How long do in run this does before seeing if my body likes I’m better. Do I give it 6 weeks draw labs. The six weeks I’m and draw lbs...
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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