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    Current TRT Patient (Defy) - Which Labs Should I Order for Sexual Dysfunction

    I have been on Test Cyp (70mg IM twice weekly) and HCG (500 IU SQ twice weekly) since 09/2018. These dosages have put my trough TT between 752-1174 ng/dl and trough FT between 23.2-32 pg/dl. My Estradiol (sensitive) on these dosages has always been 20-25. The problem prompting this post is...
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    90 Day TRT Follow Up Labs - Advice Would be Appreciated

    I have just received the results of my 90 day follow up labs and I am seeking advice on how to interpret them. Some of the highlights: Testosterone, Serum: 334 -> 1174 ng/dL Free Testosterone (Direct): 7.8 -> 32.2 pg/mL Estradiol, Sensitive: 11.5 -> 25.4 pg/mL SHBG, Serum: 46.7 -> 33.6 nmol/L...
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    Medication Management Tip for New Guys on Injectables

    Bottom Line Up Front • Don't panic if it seems like you're using up a bottle of Testosterone or HCG more quickly than expected. • Pharmacies don't fill the bottles up all the way to the top. ◦  Therefore, you can't use the top of the bottle (near the stopper) as a reference point for the...
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    Help Analyzing Initial Defy Medical Labs (plus additional labs)

    I recently had my initial labs done with Defy; I have an appointment with Dr. Saya in the beginning of September. I am also attaching other labs I had done in February, March, and just a couple weeks ago in July (all in 2018); and a recent DEXA and RMR test. I am not well versed in a lot of...
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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