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  1. K

    Drug and/or hormone-related hair loss

    I'm 54 and have been on anastrozole and cabergoline for over a year. I've been treating high E2 and prolactin. I started with anastrozole and then, after seeing my E2 come down, added the cabergoline. I've normally got a good head of hair, but starting cab immediately caused noticeable hair...
  2. K

    Looking for Answers RE: latest E2 & prolactin

    I'd appreciate any input on a couple of questions that came up with my latest labwork. Details are here: https://www.excelmale.com/forum/showthread.php?11560-Latest-blood-work-with-a-couple-of-questions&p=115366#post115366 Specifically, are my E2 and prolactin numbers accurate? I have reason...
  3. K

    Can low-dose TRT preserve some LH/FSH?

    I have slightly below-average TT and my LH and FSH are near top-of-range. Some have suggested this is primary hypogonadism. Since I'm starting with high LH/FSH, would it be possible to take a small enough dose of testosterone to have some benefit, while bringing down but NOT killing LH/FSH...
  4. K

    Blocking Androgen Receptors in the Hypothalamus?

    I’ve been doing a little reading about the HPTA, as I’ve been considering TRT and want to understand what it really does. This led me to a (perhaps stupid) question. It seems that standard practice is to use HCG in addition to supplemental testosterone if one wants to preserve his natural...
  5. K

    Anastrozole in vodka dosing question

    I'm in the process of dialing in my anastrozole dosage (no M.D. or prescription). At first, I was crushing the 1mg pills and measuring the desired dosage using a mg scale. This is a bit of a hassle, though, creating bindles to hold the doses and I always lose some medicine in the process...
  6. K

    Latest blood work with a couple of questions

    5/17/2017 6/14/2017 7/11/2017 8/4/2017 Units Range Testosterone, Serum 496 ng/dL 264-916 " 504 566 650 ng/dL 348-1197 Free Testosterone (Direct) 12.1 13.6 11.5 pg/mL 7.2-24.0 Estradiol 41.5 27.0 17.0 pg/mL 7.6-42.6 Prolactin 21.5 18.9 16.1 10.9 ng/mL 4.0-15.2 LH 7.0 8.2...
  7. K

    New member - Working on T, E2 and Prolactin

    I'm 53, diabetic, obese and had no energy, motivation or sex drive. I got sick of having doctors and others tell me the same thing - diet and exercise, diet and exercise, diet and exercise. Of course I need to take care of those, but when you have zero energy and motivation, this is like...
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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