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    Life Extension Pregnenolone

    Hi, I was taking 50 mg capsules of Pregnenolone(1 in the morning for a number of months) from Life Extensions. No real difference in how I felt or on blood test.(felt ok still) I am taking 100 mg capsules(1 in the morning) and have been since Christmas. DHEA have come up. Feel pretty good...
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    Opinions welcome

    Hi Guys, My protocol is going pretty well. 75mg enanthate and 500iu HCG every 3.5 days . I do use an AI My question is.... If I feel ok like this. Will raising my dose to 80mg improve how I feel? Thank you Geoff
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    HCG Protocol advice

    G'day ppl, Im currently using 150 iu of HCG daily. I have been thinking off changing to Nelsons method of 500iu every 3.5 days. Can anyone tell me the advantages to Nelsons protocol. (Except the obvious of less pinning)? Are there any disadvantages? I did read here somewhere that Dr Saya...
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    Pregnenolone

    G'day, Just added Pregnenolone 50mg caps to my protocol. One every morning. Current protocol: 75mg enanthate 2x week 150 iu HCG everyday 50mg Pregnenolone Capsule every morning What should I expect?
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    New Blood test results

    G'day, i try not to post to often. I mostly browse and learn. My protocol is 75mg of enanthate every 3.5 days. 150iu of HCG everyday. I have been feeling much better than before TRT. Though I feel tired a lot. Emotional. Erections/ labido ok. I don't know if I should blame my E2 or the fact...
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    Compounding Pharmacies Australia

    G'day guys, I live in Tasmania, Australia. I'm lucky to have a good Doc that also prescribes HCG. There is only one compounding pharmacy that will make up HCG in Tasmania. They will mix it 5000 iu at a time. They will not sell it and let me mix with bacteria static water. This cost me $70 for...
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    Peak testosterone level?

    G'day guys, I inject 75mg of primoteston every 3.5 day into mt delts. My last blood work showed that my total testosterone was at 872. The blood test was done just before my next injection. I follow Nelsons protocol. HCG included(250iu) My question is, if that is my trough level, what estimate...
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    Primoteston and Nebido

    Hello. I have watched Nelsons injection technic with a 27 gauge needle. Can Primoteston and Nebido be injected with a 27 gauge? My doc thinks they are to thick for a 27 gauge. Does anybody here use one of these and a 27 gauge needle? thank you
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    Testogel t level question

    Hello, I have been a member for a few months. Just reading and learning as much as I can. Bought Nelsons book. 43 years of age. i have been on TRT for 7 weeks now. Before I started my t level was 3.9 (9.9-27.8). After three weeks on testogel: testosterone 25.7(9.9-27.8) estradiol. 68(28-156)...
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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