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  1. J

    Carnivore Diet-Dr. Baker Blood Test

    This is an interesting review of his blood levels, but his testosterone is especially interesting. He is athletic and very muscular, yet his TT is 237 and FT 5.5. Not sure of the ranges, but they are low no matter. He posits that his androgen receptors are sensitive, so the low lab value is not...
  2. J

    One year TRT with DEFY Results

    It has been a year since I started TRT with Defy, and I feel great. My erectile function is great (fingers crossed) and I am leaner than I have been since my early 20s (40 now). My cholesterol and fasting glucose are back to pre-30s levels, also. I have my one-year consult next week. My E2...
  3. J

    Exercise Induced Endothelial Dysfunction?

    Guys, I am obsessed with endothelial health and maintaining its health (because penis health), which includes not damaging it. The below study seems to suggest that certain exercise selections can hinder endothelial health due to desensitization of cells. Am I reading this correctly? A large...
  4. J

    Sildenafil Slow Release (SR) Empower?

    I have been buying Sildenafil SR 36mg from Empower, and the SR part is confusing. The label says take 30-60 min before sex, but it is a slow release. In practice, it still may not work in 30-60 minutes if you open the capsule. I wrote and called Empower to ask if the capsule, ingredient or...
  5. J

    Nocturnal Erection Duration and Penile Damage?

    Is there a chance that having prolonged nocturnal erections might lead to penile tissue damage? I have been doing a ton aerobic work lately and using citrulline and daily Cialis, and the last two nights I have been waking up with crazy hard erections that hurt a bit, even after going down...
  6. J

    19 Week Blood Draw--Anxiety/Fine Tune

    Okay, I am almost fine tuned, but have had bad anxiety and feeling a bit bonkers at 12-36 hours post shot. In consult with Defy, I have been tweaking my Tcyp dose. My 19 week blood test at 36 hours post shot shows, I think, that 80mg Tcyp is too much, as it peaks too high, especially my DHT and...
  7. J

    Weaning Off Cialis--Pros/Cons?

    As my hormones are getting dialed in, I am requiring less Cialis daily. My next stop would be 2.5 per day, which did not work prior to TRT. So, I am at a point where I have to decide if the psychological angst of stopping is worth the trouble. Pros to quitting Cialis, whether physically or...
  8. J

    Seven and One-Half Weeks on TRT After Clomid Failure

    Tried a clomid restart with Defy, due to poor protocol with prior Dr., then returned to TRT with Defy, and I am now planning to drop the AI for the next round of blood work, as taking it makes me feel bad. I think I have plenty of upward room, considering 7 doses of 0.20AI had [email protected] at trough...
  9. J

    Testosterone Flu: Is it Real?

    I have searched here and other forums, and I cannot find many non-bodybuilder sites that address "Test Flu." I recently resumed a TestCyp/HCG protocol (80mg Cyp/350iu HCG E3.5 days [All drugs purchased via Defy.]), after stopping a Clomid challenge. Prior to Clomid, I did 4 months of 160mg...
  10. J

    PDE-5 Inhibitors Tachyphylaxis/Tolerance?

    I have searched Pubmed using every different variation of the above, and only a few studies pop-up regarding the effects of long-term use and building resistance. Some indicate that the body does not build resistance to PDE-5 inhibitors, while some speculate that is might occur. Some studies...
  11. J

    Clomid Restart w/Defy

    I will update as more labs or significant changes occur. I switched to Defy Medical on January 11th for two reasons: 1) my doctor required in-office shots, which prevented dosages every 3.5 days; 2) he would not entertain the idea of multiple shots to prevent my 48-72hr spike that led to my...
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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