test level

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    Testosterone Peak by Injection Method

    Question- Is there a difference in when your testosterone level peaks if you inject with a 29 gauge 1/2” insulin syringe in the shoulder ( for example ) or if you were to inject with a 23 gauge 1” in the glutes? I’ve tried both and feel that the smaller gauge in the shoulder seems to take...
  2. Z

    New TRT doctor questions

    So I am following up with my new doctor that I saw on Wednesday. It was 45 minute consult just to explain what was going on. Why I am seeing him, why I went on TRT. Basically I explained to him I am tired that of the ups and downs that I have been experiencing on TRT. These ups can be for a week...
  3. N

    any reason to go back on TRT with these levels?

    Hi fellas, Im a 40 yr old male, went off TRT well not on purpose but switched to a compounded cream which it turns out I wasnt absorbing at all so 6 wks later i started to recover cold turkey from 2 yrs on test therapy. So been 3 months off now with some hcg a month ago to help things along 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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