testosterone trough level

  1. B

    Trough for once weekly vs twice weekly

    My Dr wants me injecting 100mg once weekly and blood taken at trough the day before injecting. I have been splitting it up to 50mg e3.5d. what kind of difference would be expected in the blood work between those two schedules. If I inject Monday am and Thursday am then draw Sunday will the...
  2. Mission

    Now with hCG, concerning bloodwork 7 months into TRT

    Hoping to get some advice about my latest labs and protocol. I’m not sure what changes would be best at this point. I’m not confident in my TRT office and am considering switching docs. Anyway brief background…. Initial protocol and 1st labs after 7 weeks on TRT led to this: Doing this twice...
  3. S

    Poll- What trough testosterone level do you feel best overall?

    I wanted to do a poll to see where most men feel best in general once finding a treatment plan that works. It seems more people on the forums are moving to lower doses and feeling better. Option 1-400-599ng Option 2-600-799ng Option 3-800-999ng Option 4-1000-1200ng
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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