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    Peak testosterone level?

    Thank you for everyone's input. So if I'm understanding correctly.....my peak testosterone level won't be much above my trough level at 872?
  2. G

    Peak testosterone level?

    Hi Nelson, i started trt trt in late February this year. The doc started me on testogel, but my levels never came up past 300. After that I requested the change to injections. So about 1.5 months on 50mg every 3.5 days. Then changed to 75mg every 3.5 days. I'm feeling a lot better compared to...
  3. G

    Peak testosterone level?

    G'day guys, I inject 75mg of primoteston every 3.5 day into mt delts. My last blood work showed that my total testosterone was at 872. The blood test was done just before my next injection. I follow Nelsons protocol. HCG included(250iu) My question is, if that is my trough level, what estimate...
  4. G

    Primoteston and Nebido

    Thank you Nelson.
  5. G

    Primoteston and Nebido

    Hello. I have watched Nelsons injection technic with a 27 gauge needle. Can Primoteston and Nebido be injected with a 27 gauge? My doc thinks they are to thick for a 27 gauge. Does anybody here use one of these and a 27 gauge needle? thank you
  6. G

    Testogel t level question

    I am on 2 packets every morning. i am very lucky to have found a doctor that knows what he is doing. He has given me a script for HCG, which is in the process of being filled. I'm sure he will look at Nebido when I see him tomorrow. He believes in staggering injections to reduce peaks and...
  7. G

    Testogel t level question

    Hello, I have been a member for a few months. Just reading and learning as much as I can. Bought Nelsons book. 43 years of age. i have been on TRT for 7 weeks now. Before I started my t level was 3.9 (9.9-27.8). After three weeks on testogel: testosterone 25.7(9.9-27.8) estradiol. 68(28-156)...
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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