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  1. C

    Traveling without Test Cyp

    My solution was to inject a double dose each day for the five days preceding my departure. Never noticed any change throughout the 5 days that I was away. Resumed normal dosage upon return.
  2. C

    Traveling without Test Cyp

    I’ve been on daily IM injections of 35 mg Test Cyp for about 5 months. I’m flying to another state for vacation for 5days. I’d rather not go through the crap associated with flying(transport of prescription/needles etc), and am wondering how I’d react to no injections for 5 days. Should I up the...
  3. C

    Weak/Bad batch of trt cream

    My first month using TRT cream went pretty much as expected. Increased libido, less anxiety, slight increase in skin oil production etc. Within a day or two of starting the second month’s canister, I noticed deceased libido, some increased anxiety, dryness of skin etc. Has there been issues with...
  4. C

    Sent blood test, now what?

    Ordered online (excel male). Blotter blood drop card ZRT lab. Low T symptoms include poorly maintained erectiion, low libido, low energy, a bit depressed, losing muscle mass. I’m 67, and hoping to affect some (if not all) of these issues which have gradually come on throughout the past 5 years......
  5. C

    Sent blood test, now what?

    I’m new, and I sent my blood samples off the other day. What happens now?
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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