Recent content by Grendl

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    Some labs out of range -- would you change anything?

    Argh... another typo. I meant: 20mg daily, 140mg per week.
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    Some labs out of range -- would you change anything?

    Fair point, though I do find the feedback here useful.
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    Some labs out of range -- would you change anything?

    I did indeed mean .10ml, .20mg -- I even thought about not making that type as I entered the text, and it somehow still slipped by me. So total of 140mg/week. Thanks for your comments!
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    Some labs out of range -- would you change anything?

    No, nothing other than test cyp and creatine, hopefully it's just genetic and not indicative of any problem. It does help I think with the body composition.
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    Some labs out of range -- would you change anything?

    Thanks @sammmy -- I appreciate the feedback.
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    Some labs out of range -- would you change anything?

    Thanks @madman, I appreciate the feedback!
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    Some labs out of range -- would you change anything?

    Yes, at trough (but I inject daily, so that's every day), 9AM, before next injection. Hematocrit (16.5) & Hemoglobin (49) are highish but within range.
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    Some labs out of range -- would you change anything?

    Hi All, My question is: Given my data below -- would you change anything? Me: 61yo, 5'10", 165lbs, TRT for nearly 2 years. I've titrated up over that time up to current .10mg test cyp SQ daily (last 6 months). Good body composition, good energy, good cognitive function, good libido/sexual...
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    Choose Quest or Labcorp?

    None of the private labs (except Marek) I’ve used show up in the LabCorp portal. Annoying.
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    Anyone had bad experiences with LabCorp?

    I've used both Quest and LabCorp for self-ordered labs in the last few years. Quest seemed to be consistently slightly less expensive. However, about a year ago I decided to just use LabCorp where it was an option b/c the majority of my docs were using it, I find the patient portal to be pretty...
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    1/2" Delt -- always a lump and bruise

    Same here, 1/2" 30g pin .07ml -- I've been experimenting with daily 'micro-dosing' for awhile, and wanted to include delts to increase the total number of sites, but they are almost always sore after -- no lump, just an ache that lasts for a day -- so I stopped. I'm a skinny old guy, fairly...
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    Hello, 60yo starting TRT.

    Thanks Blackhawk, I'm sorry you had to go through that, I appreciate your help and taking the time to pass along your experience, and I wish you the best with current health issues. The consensus seems to be that I was planning to start out way too high (even at 150mg, down from the 200mg...
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    Hello, 60yo starting TRT.

    Thanks again Cataceous -- this is a huge help. I was working with an incorrect understanding of 'physiological vs supraphysiological' as (roughly) either less than or greater than 200mg/week -- I can see now that is wrong/incomplete.
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    Hello, 60yo starting TRT.

    Thanks Golfboy307, I very much appreciate the feedback. I'm a bit older than you but same height/weight, and your protocol & results sound great (I know everyone responds differently, but I imagine body type/mass are important). Can I ask how you schedule your doses? I have 200mg/ml test c, so...
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    Hello, 60yo starting TRT.

    Thanks Vince, I appreciate your advice. I've considered HCG, but decided for now to change only one variable (testosterone) then wait to see what the labs tell me in a few months. I'm a bit worried about HCT, currently level is in the middle of the reference range - hoping that won't be an...
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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