Question about estradiol

The results are close enough that you can probably get by using only the non-sensitive test in the future.
Question, Is 33pg/ml (ROCHE ECLIA) a decent number for estradiol if I could raise free T? (10pg/ml)
And also, what do you guys think is the normal range for free T? Cause I keep reading different ranges?
Sorry for bothering with so many questions haha!
 
Last edited:
Question, Is 33pg/ml a decent number for estradiol if I could raise free T (10pg/ml)
Certainly 33 pg/mL is a "decent number for estradiol", depending on the circumstances.

Assuming your SHBG was 15 nMol/L at the time of the estradiol test, then calculated free estradiol is approximately 1 pg/mL, with a reference range of 0.2-1.5. So not very high in an absolute sense, but still possibly high relative to free T.

I assume you're using the direct free T test, which is inaccurate, and the reference ranges vary greatly between different labs. Do you have a measurement for total testosterone for your current protocol? As I mentioned in another thread, you really need total testosterone, total estradiol and SHBG to calculate decent estimates of the free hormones. Ideally the measurements are made at the same time.

In any case, raising testosterone implies a proportionate rise in estradiol, so the ratio won't change much. Assuming the ratio is actually a problem, it can be improved by reducing body fat or by using an aromatase inhibitor.
 
Question, Is 33pg/ml (ROCHE ECLIA) a decent number for estradiol if I could raise free T? (10pg/ml)
And also, what do you guys think is the normal range for free T? Cause I keep reading different ranges?
Sorry for bothering with so many questions haha!
You've got to track your symptoms along with your numbers, or you'll end up chasing numbers forever. I don't think there's any two men on this forum that do everything 100% the same. An E2 of 33 could be fine for some of us, it could be terrible for others. Some of us want our E2 within a ratio of our testosterone, others go E2 to SHBG (which there is no published study to support, but two different PA's at Defy that I know of recommend that method and it's the one that works for me personally). Journal everything and let symptoms guide you. Numbers are ALWAYS secondary.
 

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

Beyond Testosterone Podcast

Online statistics

Members online
6
Guests online
395
Total visitors
401

Latest posts

Back
Top