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    Transitioning from Inj to TD’s

    I searched everywhere with no luck. If one is on weekly 200 T and would like to transition to daily 200mg transdermal, would I start the 200mg TD on day 8 after last injection? Or would I use a gradual increase scale starting day 8 with a TD smaller dose.
  2. S

    Measuring T - needle and tip included?

    Folks, I have noticed that quite a bit of the T cypionate can be in the needle and tip when you draw it out. So do you measure on the syringe with the needle and tip full? If I am measuring without needle and tip full then .3 (60 mg) would actually be .4 (80 mg) with needle and tip full???? Thanks
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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