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    Sustanon protocol - Nelson?

    Hi Nelson - not sure if you will see this but I think I read you used Sustanon back in the day and was quite a fan of it. Sustanon gets a lot of bad press in TRT circles due to it having 4 different time release eaters to it. Just wondering how you used it and how it compared to single ester...
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    Anastrozole and lipids

    I have read conflicting views on this. Some say anastrozole is really bad for lipids and others say there is nothing inherit in the drug itself but a by product of lowering estrogen to much which causes lipids to come back not good. Also most studies are referenced on women at 1mg per day. Does...
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    Arimdex - can it make you angry

    I had high estrogen levels and started taking arimdex - 0.25mg every 3rd day. I have become really angry while on it, starting to fall out with people and create arguments. I am due for blood work soon and would be surprised if my levels are low (prob about 30)....is there any link?
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    Body fat - how much difference does it make for T to E

    If someone was 20% body fat and then went down to 10% would the amount of T converting E significantly be reduced? I ask as I do appear to be converting a fair bit to estrogen but I do have about 20% - 25% body fat
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    how fast does estrogen drop when test drops

    I am on TRT in UK (Sustanon 250) due to way the medication works there is an initial spike where levels can go v high followed by a drop - during the spikes I assume my estrogen rockets up to (in line with test) - once test drops though does estrogen drop with it? I know by the end of the...
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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