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  1. M

    Testosterone dosing amounts in postmenopausal women?

    I'm 66 and on TRT for 2 years with good results. Wife has been taking estrogen and both wonder if adding some T could help her. Would be Test cyp. From what I've read anywhere from 5-10mgs a week in one shot seems to be what most practices use. Would love to hear from the forum for...
  2. M

    Would grapefruit juice or bioperine increase Cialis effect?

    I take a 5mg daily of cialis which has been working fine. Just wondering if taking it with grapefruit juice or bioperine occasionally ( like on a Sunday morning), would increase its potency/effectiveness?
  3. M

    Cypionate vs enanthate, is one better than the other?

    Understanding that the half- life of Enanthate is shorter than Cyp, if one is dosing 2 or more times a week IM, is one better than the other, less side effects etc...?
  4. M

    137ng/dL Testosterone blood test result, not good?

    Got my GP doc to run a blood panel on me at my latest physical and got him to include tests forT, free T, SHBG, thyroid...couldn't get the estradiol included. Am 64, and laid out my situation in Introductions this week. Have the traditional low T symptoms and am going to get back on trt after...
  5. M

    64 and giving trt a second go

    Great site, lots of knowledge and insights. About to give trt a second shot ( pun intended). Have done a lot more research this time ( by a factor of 1000x), but still have questions, and probably always will. Some background, 64, 6'3" 210 (about 10-15 extra winter lbs). Always active and...
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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