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  1. R

    How many hours after T cream should I test T in blood?

    How many hours after applying 20% T cream (Pentravan base from NPlabs) should I test my Total and Free T? At what hour mark after the application is the peak?
  2. R

    Topi-click - push out the extra T after the click?

    So, according to this doctor, you should push down on the cap of the Topi-click bottle and apply the extra T cream that comes out along with the regular dose. However, it seems like that is almost an extra ~30mg of testosterone. If you use only 1 click (50mg), that's a significant increase. I...
  3. R

    Progesterone 280% higher, SHBG high, DHEA low, T normal -- should I start TRT?

    Hi. I would appreciate any analysis of my blood tests. Background: - 34yo male (5ft9 & 132lbs /180cm & 60kg) - never been a vegetarian. I eat mostly animal food, no sugar, no gluten. Severe chronic illness since 2013: - extreme tissue fatigue/weakness - super-easily injured - unable to heal...
  4. R

    11 years of EXTREME tissue weakness - I need advice please

    Hey, folks. In summary, I am 34yo (5ft9 & 132lbs /180cm & 60kg) and have been suffering for 11 years with extreme tissue weakness, super prone to injuries and no ability to heal. I am mostly house-bound. Years ago I tested low for DHEA, Progesterone, Estradiol, and high for SHBG. My total T was...
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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