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  1. 5

    Current Diagnostic Criteria for Testosterone Deficiency Are Inadequate

    Is there another link to this article. I want to post it on another site and the posted link requires sign-in to Excelmale. Thanks.
  2. 5

    Tips from a phlebotomist

    Thanks, I am one of those who is a bit phobic of the needle sticks. Thanks to TRT and having it done more often, the phobia has subsided some, but I still don't enjoy it. I still get faint at times. The skill of the "vampire" DOES make a difference. I had one that hurt me bad. I will never let...
  3. 5

    Metformin and Finding an Optimal Dosage

    Metformin may also reduce HCT. Since I have been taking it my last two blood tests for Defy showed no HCT increase. Still high, but not getting worse. I also use Narigin for HCT.
  4. 5

    Injecting Test with EasyTouch insulin syringe?

    I use 5/16, 30 gauge syringes for both T and HCG. Work fine and much more comfortable. May take 4-5 minutes to draw the T.
  5. 5

    Old member and having trouble logging in on the new site?

    The new website would not accept my old username (hoosier52) or password. Had to re-register with new user name and email address. Anyway, glad to be back on the site.
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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