subq vs im

  1. M

    Subq increased aromatiztion

    One would think Subq injections would lead to lower rates of aromatiztion due to less blood supply in fat tissue. However this has absolutely not been the case for me. I was doing IM injections here for months even years. I did try subq injections before but I didn't make the correlation of...
  2. Dr Justin Saya MD

    Some insight on T cyp injection frequency and SC vs IM)

    Wanted to drag over a discussion from the FB group so it doesn't get lost in the FB black hole (as Nelson calls it) for all of time and perhaps can enlighten folks for more than a few days. A member posted the following (copy/paste so hopefully formatting cooperates): I switched to daily SubQ...
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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