What is the highest testosterone level for long term health ?

The interesting thing about this is how people seem to always reference trough when deciding what blood level of test is safe or healthy. So someone will reference a number such as 900 tt for example. You can do 200mg 1x/wk and see a trough of 900, but you are likely peaking at 1800 or more and coming down. If you injected daily you may just be at a steady 1300. I believe there would be a difference in how your body handles that although I have no proof. I suspect cholesterol, hematocrit, etc would be more stable on the daily injections.
 
I agree with CoastWatcher and Vince.

A testosterone level that can ensure the following will be reasonable:

1- A hematocrit elevation that does not require more than 3-4 times per year blood donation or phlebotomy.

2- A estradiol level (sensitive assay) of under 45 pg/dL. This is debatable, however.

3- Blood pressure under 130/80.

4- HDL over 40 mg/dL

5- A PSA under 4

6- Good quality of life and libido

7- Low water retention

Id prefer blood pressure at 120 or less for health reasons
 

hCG Mixing Calculator

HCG Mixing Protocol Calculator

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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