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  1. Systemlord

    Need some advice.

    I remember a fellow from the UK who started TRT and couldn’t handle any alcohol afterward where beforeTRT he didn’t have any issues. He would have a couple sips of alcohol and wake up with a horrible hangover lasting for days.
  2. Systemlord

    High DHT

    There’s a pretty substantial difference in the half-life between topical cream and injections. You’re injecting daily and your hormone levels are virtually unchanging, always elevated whereas the cream levels fluctuates wildly. Daily infections usually causing too many problems for you...
  3. Systemlord

    Need some advice.

    The typical comment from an uneducated doctor that wants to sound like he knows what he’s talking about.
  4. Systemlord

    Pygeum, DHT and Muscle Mass

    Cialis also has many other benefits. Bodybuilders use it for the extra pump when working out.
  5. Systemlord

    Pygeum, DHT and Muscle Mass

    Blocking DHT could hurt cognitive function, wellbeing and libido. The conversion process of testosterone to DHT is a precursor to so many neural steroids. Affecting one pathway can have downstream effects to the conversion process of other neural steroids. DHT is the most potent hormone among...
  6. Systemlord

    6 month bloodwork

    No, I wouldn't recommended a blood donation for a HCT at 50%. If it bothers you go to a lab company with a 52% cutoff. My providers lab company has a 49% cutoff for HCT. I had an HCT at 55% and my doctor wasn't worried because my blood pressure was controlled. It takes knowledgeable doctor with...
  7. Systemlord

    6 month bloodwork

    The is the wrong way to do things, you test at trough, not peak. Your levels are lower 2.5 days later and that's where you want to test levels. Whatever is causing your liver enzymes to be elevated is probably the cause of your low-T, because TRT improves liver function...
  8. Systemlord

    100 mg week testosterone

    https://www.excelmale.com/threads/at-what-free-t-level-do-you-feel-optimal.26295/
  9. Systemlord

    Post finasteride syndrome cognitive

    Depends what you mean by recovered. Most do not fully recover that had the classic symptoms of PFS.
  10. Systemlord

    Question about dosing.

    The peak is short-lived, levels drop rapidly after that! If your trough level is too low and peak is too high, it will be impossible for some to truly feel optimized. For these men twice weekly is prefered to the yoyo hormone levels you get on a weekly protocol, where levels peak high and low...
  11. Systemlord

    Hair Loss & Acne Side Effects

    I've been off TRT for more than 6 months (on TRT for 7-8 years) and my male pattern baldness is unchanged. It’s all written in your genes, therefore you can’t really compare yourself to someone else. You could go on TRT and lose a lot of hair, lose little bit of hair or not progress any faster...
  12. Systemlord

    Advice About Hematocrit and TRT Dose

    The standard of care for TRT being, 200 mg every 2-4 weeks. A lot of these men are poorly managed on therapy as it is. These protocols are known to increase chances of erythrocytosis (supraphysiological to hypogandal every 10-14 days) for these metabolically compromised men. These men are...
  13. Systemlord

    T Levels and high Estradiol

    If we knew where your FT sits, I could make better recommendations. Not everyone needs FT at the top end. The problem may be the once weekly injections creates large fluctuations in hormone values. The first half of the week your hormones are higher compared to the latter half of the week...
  14. Systemlord

    T Levels and high Estradiol

    This isn't advisable. LS/MS method.
  15. Systemlord

    New blood work

    It would be in your best interest to question everything your doctors tell you, especially when it has to do with your general health, which is not what doctors are taught in mainstream medical schools. Doctors are trained and educated in men's and women's diseases and manage those diseases with...
  16. Systemlord

    Advice About Hematocrit and TRT Dose

    https://www.excelmale.com/threads/does-a-high-hematocrit-change-your-bloods-clotting-profile-high-altitude-vs-trt.30879/ https://www.excelmale.com/threads/stroke-related-mortality-at-different-altitudes-a-17-year-nationwide-population-based-analysis-from-ecuador.26723/
  17. Systemlord

    Advice About Hematocrit and TRT Dose

    I can see your problem. You lack basic understanding of hematocrit and how it one of the benefits of TRT. Even slightly over the range is considered healthy, but somehow you convinced yourself it's unsafe. I have labs showing my hematocrit change 4% (55->51%) in a few hours, because I had...
  18. Systemlord

    T Levels and high Estradiol

    No mention of FT at all. Since when is TT at 500 ng/dL considered low?
  19. Systemlord

    New blood work

    Please share lab results instead of saying RBC is high, then we can have a more productive conversation. Why do you think high red blood cells, hematocrit and hemoglobin is bad for you? TRT is likely pushing your ferritin down, the blood donations may not benefit you anymore.
  20. Systemlord

    New blood work

    You now may have a reason for low ferritin. Why are you donating blood? Donating blood will lower ferritin which then requires iron supplements which will increase the hemoglobin. You see the problem here?
  21. Systemlord

    New blood work

    Your ferritin levels are low and may or may not be a problem. Testosterone increases hemoglobin and hematocrit which uses up iron, ferritin is iron storage. Iron deficiency without anemia would see normal but bottomed out hemoglobin and low MCH, MCV, MCHC and high RDW. If you were to raise the...
  22. Systemlord

    Advice About Hematocrit and TRT Dose

    Testosterone increases red blood cells, same as if you lived at high elevation. So basically if you go from sea level to Boulder, Colorado, the first thing that’s going happen is your testosterone is going to increase (above 4000 ft) and your hematocrit and hemoglobin are going to go up. If you...
  23. Systemlord

    Advice About Hematocrit and TRT Dose

    Glenn Cunningham, the doctor that wrote the guidelines for hematocrit. Dr. Abraham Morgantaler, asked him both on stage and in person where did you come up with hematocrit 54% cut off? His answer was we actually don't have much data to say anything but we had to pick a number and it seemed like...
  24. Systemlord

    Advice About Hematocrit and TRT Dose

    You misunderstand, I'm saying high hematocrit doesn't cause those issues. There are medical conditions, diseases that leads to high hematocrit (sleep apnea, polycythemia vera, COPD) and it's the disease NOT the high hematocrit that causes those issues. These diseases starve the body of oxygen...
  25. Systemlord

    Advice About Hematocrit and TRT Dose

    Your doctor is flat out wrong and is operating outside his scope of medicine. The Traverse trial squashed the myth of testosterone related heart attack, blood clots, and strokes. The FDA is removing the black label warning from testosterone products...
  26. Systemlord

    Advice About Hematocrit and TRT Dose

    https://www.excelmale.com/threads/oral-tu-offers-a-safe-and-effective-long-term-treatment-option-for-men-with-hypogonadism.26398/ https://www.excelmale.com/threads/my-experience-on-jatenzo-oral-trt-log.23595/
  27. Systemlord

    Advice About Hematocrit and TRT Dose

    Seems like you would do better oral T, Jatenzo or Kyzatrex. The half-life is similar to gels only you don't have to worry about absorption issues or transferring Test to children. The clinical trials showing only a very small percentage of men experienced erythrocytosis. The recommended...
  28. Systemlord

    Kyzatrex or Jatenzo

    https://www.testosterone.org/free-testosterone-levels/ https://www.excelmale.com/threads/testosterone-level-how-low-is-too-low-health-consequences-of-low-testosterone.1719/ https://www.excelmale.com/threads/how-to-find-a-good-doctor-that-prescribes-trt.28412/
  29. Systemlord

    Kyzatrex or Jatenzo

    https://www.excelmale.com/threads/what-is-a-normal-blood-level-of-testosterone-what-do-guidelines-say.1395/
  30. Systemlord

    Kyzatrex or Jatenzo

    The Total T doesn't define testosterone deficiency, the FT is what truly matters. Your endo is operating outside his scope of medicine and just is ignorant on the topic of male sex hormones. This is quite common since it isn't taught in mainstream medicine schools. The endocrine society...
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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