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  1. Robotics

    On Synthyroid - High TSH - Low T4 - Good T3

    These were my labs prior to the synthyroid. T3 was pretty similar, T4 was higher. Doesn't seem like the T4 is doing much for me. TSH: 3.65 mlU/L Ref 0.2-4 (Note* was above reference range at 4.7 mlU/L (December 2016) and 4.39 mlU/L (May 2017) Free T3: 5.2 pmol/L Ref 3.5-6.5 Free T4 15.3 pmol/L...
  2. Robotics

    On Synthyroid - High TSH - Low T4 - Good T3

    1. Since my current Free T3 is on the upper end, will taking T3 not put me above range? or does the increase in T3 reduce conversion so i shouldn't expect too much of an increase in Free T3? I will need to convince my doctor of this. 2. So you would advise dropping the low dose T4 if the...
  3. Robotics

    On Synthyroid - High TSH - Low T4 - Good T3

    I am on the lowest dose of synthyroid 25mcg. I also take 200mcg of selenium. Do I need to increase synthyroid to up my T4 and reduce tsh? What is considered a good RT3 level? if it is high should I add Cytomel? Tsh 3.21 mIu/L (0.24-4) Free T4 14.3 pmol/L (10-25) Free T3 5.5 pmol/L...
  4. Robotics

    Irritability and anxiety on Testosterone

    basically 1.5 weeks in I was ok, then got massive anxiety like never before, then a week after that the anxiety was gone. I have heard a few other people mention they had similar experience when switching protocols. It is a time of great variations in levels. If your new protocol is reasonable i...
  5. Robotics

    Irritability and anxiety on Testosterone

    started on week 2, went away after a week gradually.
  6. Robotics

    Irritability and anxiety on Testosterone

    I would make it more clear for people to understand your labs and type out your protocol, free T, Total, E2, SHBG, dhea etc for that period and do the same for your other protocol. 6/8 was 80/500/.125 and 9/24 was 54/350/.125 ? it is suprising that your free testosterone went up so much with...
  7. Robotics

    Confused about Testosterone Enanthate Half Life

    that was the reason I asked the concentration, to infer volume. Somebody posted a paper here that showed a difference in absorption rates based on volume of the carrier oil. Would be interesting if the slower absorption of cypionate perhaps led to less aromitisation? do you have any labs, or...
  8. Robotics

    Confused about Testosterone Enanthate Half Life

    were the enanthateand cypionate the same concentration? so the same volume was injected? In canada Enanthate is 200mg/ml. perhaps different volumes can play a factor?
  9. Robotics

    Dr scare tactics

    yeah pretty ignorant of him, but you know what the deal is. As long as you get the physical who cares lol.
  10. Robotics

    New thoughts on AI

    you need a lot of shbg to bind up such a large dose, and not have a super high free testosterone that aromatises into E2
  11. Robotics

    Please Read - Protocol Change...

    depends on your labs
  12. Robotics

    New thoughts on AI

    He must have high shbg not low.
  13. Robotics

    New to TRT, Libido & Erection Strength

    So libido, erections, morning erections were not consistent until month 3-6? I am on week 5 and some days I have them some days I don't, making me worried.
  14. Robotics

    Getting off TRT after 2 years

    how were able to get a prescription for fsh, did you go through your gp, a fertility clinic? what country are you in?
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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