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  1. M

    The benefits of low dose T injections . . .

    Ideally, my current protocol (70mg test cyp split twice a week) will help me stay fit, strong, trim, healthy, sexual for the next 20 or 30 years from 59 years old to 80+ instead of the usual decay that most of us get. Those are my thoughts exactly. I was driving with my wife when an older man...
  2. M

    The benefits of low dose T injections . . .

    Gell, that sounds GREAT to me; my goal through the whole TRT episode is to have basically what you're getting. I want to work my way through fatiguing too quickly with exercise and work, then to recover a bit quicker from pesky little injuries, and to finally change my body composition by...
  3. M

    TRT and Gout questions

    There's a hereditary disposition to it; your sibling also had it which is a strong indicator. Some people get it, some don't.
  4. M

    The benefits of low dose T injections . . .

    Thanks for the response. I suspect that I'm much the same as you regarding drug responses. I've always had a strong response to small amounts that the doctors say should not work. I've had a bad back for many years. I'll sometimes take 1/2 an aspirin a day for a two week period, and after a...
  5. M

    The benefits of low dose T injections . . .

    Gibbon, that's intriguing that you have such a strong result from such a small dose. Why the dosing EOD; would one injection a week not suffice? Can I ask, have you always been more sensitive to other drugs that you've taken . . . meaning you don't need much drug to realize a good effect?
  6. M

    Swapping red meat for herring, sardines and anchovies could save 750,000 lives, study suggests

    These kinds of discussions are unfortunately always of little merit. People are guided by a belief bias; they automatically support a conclusion that is in sync with previously established values and preferences, while rejecting evidence to the contrary. In other words, they believe what they...
  7. M

    The benefits of low dose T injections . . .

    Hey Blackhawk, I can't help but feel a bond with a fellow lymphoma survivor. I'm intrigued with the dosage at 47.6 mgs per week. Is this truly where you felt best, or did you limit the dose because of side effects like Hematocrit and E2? I sometimes think of what degree of improvement I'd have...
  8. M

    HELP - Doubts about TRT

    I'm in Canada also. No, I'm not a young man like you, I'm 68, but have had much the same issues as you for a decade or so. My biggest complaint is fatigue and the fact that I'm constantly sore and seemingly unable to heal (quickly) from all these pesky little injuries. I've also had bouts of...
  9. M

    The benefits of low dose T injections . . .

    I had read that nipple sensitivity was common amongst those beginning TRT, but goes away "eventually". Not yet for me. Are you saying that nipple sensitivity could just be a normal long run part of it, and is not necessarily tied to aromatization and gynecomastia? That would be a big relief...
  10. M

    The benefits of low dose T injections . . .

    Vince, it's remarkable that your T could be that high, and yet your hematocrit, hemoglobin and estradiol are at ideal levels. That's not going to be me; my hematocrit was 47-49 before I ever started TRT, and crept up to 50 after my recent 3.5 month stint on that crappy T-gel . . . and from what...
  11. M

    The benefits of low dose T injections . . .

    I'm 68 and have chosen to pursue TRT primarily to treat fatigue, amongst other things. After a bad 3 1/2 month experience on gel (detailed elsewhere), I've finally convinced my endo to switch me to enanthate; my first injection was Saturday. Thanks to Madman for seeing me through that. The...
  12. M

    Got Test results after 3 months 1% T-Gel . . . very rattled!

    Finally got the endo to prescribe Test e for me. Tomorrow is my first shot; I've assembled most everything. Though I think I'll eventually go into delts, right now I'll inject into the thigh with a 25g x 1" needle. I've had so many problems with absorbing the gel that I just want to make sure...
  13. M

    BPC/TB for tendonitis/trigger finger

    I can offer little information, but can assure you that you're not alone with that ailment. I'm 68 and have had the trigger finger issue in both hands (the ring fingers) for the last six months and it just seems to get worse and worse. Then on top of it I got a bit overzealous with my workouts...
  14. M

    Got Test results after 3 months 1% T-Gel . . . very rattled!

    I'm trying to get off this gel, and onto injectibles, but having challenges with the prescribing doctor.
  15. M

    Injection frequency and labs

    The Madman truly knows a helluva lot about TRT . . .
  16. M

    Androgel Generic 1% - 8 Year Use - Latest Bloodwork

    So much for study models, you can say that again. And what about the average guy who never tests at two different times? He makes the assumption that his T levels are constant throughout the day, but in reality he could have a peak and trough that are far, far apart. I'm new to TRT, but I...
  17. M

    Androgel Generic 1% - 8 Year Use - Latest Bloodwork

    Lab results back at 626, so 626 at 5.25 hours after my morning application of gel, vs 167 23 hours after application. Yeah that's working right. That's skin absorption problems, time for injectibles . . .
  18. M

    Got Test results after 3 months 1% T-Gel . . . very rattled!

    Hey Joe, I know that you are correct, especially when you say that "you must apply enough T to fuel the day and have some left over for the next days". I do believe that this T is going through me too quickly; maybe not surprisingly I've had sensitive nips while on this gel, something that I...
  19. M

    Got Test results after 3 months 1% T-Gel . . . very rattled!

    Well, just to bring things up to date, recall that on Wednesday last week I tested at the 23rd hour after gel application at 5.8. I retested Friday 5.25 hours after application and measured 21.7(!). I think this means that I'm absorbing too quickly, leaving myself T starved for the 16 hour...
  20. M

    Got Test results after 3 months 1% T-Gel . . . very rattled!

    Madman, thank you for the very informative write-up, I'm learning at a great rate. How did you guess I was in Canada? I converted the test results to American units just to simplify the presentation. And yes, it is 5g Taro 1% Testosterone Gel, terrific knowlege. I'm not too happy with the...
  21. M

    Androgel Generic 1% - 8 Year Use - Latest Bloodwork

    I got my blood results back. I've taken the same dose as you, 50 mg per day (I think you mean 12.5 mg per pump?) and after 3 months I've had my first blood test. I did my lab test the next morning after dosing, 23 hours later. My total testosterone was a miserable 167; I was astounded - that...
  22. M

    Got Test results after 3 months 1% T-Gel . . . very rattled!

    For those following this, I spoke to the Endo and he seemed concerned about the long time between application and lab test (23 hours), the way Systemlord suggested. I just got back from the lab having done a second blood draw; this one 5 hours and 15 minutes after this mornings application...
  23. M

    Got Test results after 3 months 1% T-Gel . . . very rattled!

    Systemlord, thanks very much for your extensive thoughts on this very odd problem of mine. I don't doubt what you're saying, because in addition to your position, there have been others who also experienced a large difference between peak and trough throughout the day. The manufacturer of the...
  24. M

    Got Test results after 3 months 1% T-Gel . . . very rattled!

    I've been thinking more about this. Could it be that someone like myself, after 3 months on T gel, would have 400 when the lab draws the blood 6 hours after gel application and then have it drop to 167 twenty-four hours after application? Could it really vary that much from peak to trough? My...
  25. M

    Got Test results after 3 months 1% T-Gel . . . very rattled!

    I normally apply the gel at 9 am. His office said I could have blood drawn at 8 am, making it 23 hours since the last testosterone application. Could it vary that much in a 24 hour period? There was some literature on here recently that suggested Testosterone peaks 2 hours after application...
  26. M

    Got Test results after 3 months 1% T-Gel . . . very rattled!

    I'm 68 and was diagnosed in December with lower T at 314, hematocrit at 47. I decided together with the Endocrinologist to go with his suggestion of 5gms 1% T Gel, the regular starting dose. Fast forward to my first blood test taken yesterday after applying the gel regularly for 3 months. And...
  27. M

    Androgel Generic 1% - 8 Year Use - Latest Bloodwork

    I had this exact same question about testing times yesterday after starting 5 gms 1% T gel three months ago. My endo got back to me and said I should apply my daily dose AFTER the blood test this morning, who knows? After 3 months I don't feel any improvements of my symptoms. Andro1percent -...
  28. M

    Anemic with very low BP's since starting trt gel

    Illness can be sneaky . . . there's a chance your concerns are unrelated to TRT, or maybe the TRT triggers a problem that lies elsewhere. You should have a complete workup with your family doctor.
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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