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    Increase trt dose with age?

    I’ve been on 100mg/week for the past decade or so. My labs have always been fairly consistent. I’m usually around 450 at my trough. However last week my doctor called me because my labs came back at 270. I usually do my bloodwork the day of my injection but this time I had to wait an extra day...
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    Am I hitting scar tissue?!

    I inject .34 ml eod and rotate between delts and glutes. I use a 1 ml 27g needle for my injections. Every now and then I hit a spot where the testosterone is very slow to come out. I have to use a lot of pressure to empty the barrel. Today it went to a whole new level. I injected my left delt...
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    Will discontinued use of aromatase inhibitor reduce testosterone?

    My friend had been using AAS for 20 years before he went cold turkey at 29. From my understanding he never really cycled off. He's now 32 and his natural testosterone levels never recovered and has been prescribed testosterone, HCG and an aromatase inhibitor from a men's health clinic. His TT is...
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    Liver concerns on TRT?

    I've been on trt for the past 5 year. It took almost 2 years to get started because it was difficult to get doctors on board. During those pre TRT years I tried to gather as much info as I could. Now a friend of my just started but he's concerned that testosterone is hard on the liver. I...
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    Dosing at the end of a vial

    Rarely (if ever?) has a vial had the correct volume for my injection. I inject .32 ml every 2 days. Today I had .4 ml left. Normally I would draw my .32 then use the rest in my next injection when I open a new vial. Today I decided I would just use the .4 ml left in one injection. What do you...
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    Compounding Pharmacies v. Big Pharma in Canada

    I've read a few times of people going to compound companies to get their testosterone. I'm in Toronto, Canada and would like to know if this is available to Canadians. If so, why do people use it vs the brand names you'd get at a pharmacy?
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    Canadian With Questions on Daily Injections

    I inject 42mg E3D and am curious about ED injections. Just a few questions: 1. Since I draw blood on trough day (gives me lowest totals of the week) Wouldn't an ED injection numbers alarm my doc? I'm assuming the numbers would be somewhere between the peak and trough which would be...
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    What is the Function of Sex Hormone Binding Globulin SHBG?

    What is the function of SHBG?
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    High albumin?

    I've been on TRT for roughly 2 years and we're having a lot of trouble dialing things in. My doctor won't prescribe anything other than T so we've been just adjusting my dose. My last blood work shows mid free test levels but over range bio available. From what I understand this means I have...
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    High bioavailable and dht

    Currently injecting 45 mg e3d (100 mg weekly) via shallow IM (alternating between glutes and delts). Latest labs look good except for my bioavailable and dht. Total T 13.3 nnmol/L (6.0-27.0) or 383 ng/dL Free T 492 pmol/L (196-636) or 38.23 ng/dL Bioavailable 12.5 nmol/L (3.6-11.2) or 360.2...
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    Hesitant to increase dose on doctor's recommendation

    Newbie here. I'm 38 and started TRT about 5 months ago. Before starting my levels ranged from 235-255ng/dl. I started injecting 60mg IM of test cyp every 4 days (105mg weekly). After 3 months my levels increased to 380 ng/dl. Since I'm still having some trouble with focus, mood, and libido...
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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