shoulder injection

  1. W

    Thinking of switching from thigh to shoulder injections, a couple questions

    I’m injecting into the thigh with a 1 1/2 needle currently but am thinking of switching to the shoulder With insulin syringe. I don’t workout so my arms are average, would a 1/2“ or 5/8” be long enough to get into the muscle? What is the best gauge considering the viscosity of TC? Lastly, Do...
  2. J

    Nelson is right, the shoulder in the best injection site...

    When I first started TRT, I was a noob and went for the leg injections but that did not last long because of the soreness. Then I read all the rage about subQ and started injecting into the fat around my stomach area. What I found was that my free test dropped and my estradiol got to high...
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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