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  1. Scott Myslinski

    Podcast with Nelson Vergel - on TRT, Anabolics, Surviving HIV, Homosexuality

    Hi folks - Long-time reader / lurker here! My name is Scott Myslinski. I've just had Nelson Vergel on my podcast, Making a Man, to talk about TRT, Anabolics, Surviving HIV, Homosexuality, and more. Check it out HERE and please let me know what you think...
  2. Scott Myslinski

    New Study:TRT Causes Heart Problems?

    Nelson, apologies in advance if this isn't the correct place to post this, please let me know if I should post it somewhere else. Have you seen this new study and any thoughts on it? High testosterone levels bad for the heart, study says
  3. Scott Myslinski

    Hematocrit raising - what causes it?

    Hi all - I know testosterone raises hematocrit (and doctors like Crisler have said it levels off after starting TRT), but what most influences the degree to which it rises? For example: - Injections vs. non-injections - Injection frequency - Dose How much do these factors matter or is just...
  4. Scott Myslinski

    Creams with new application over injectable?

    Hi all - I've heard many problems with creams both here and from other sources. However, this recent Tweet from Dr. Jay Campbell got me curious: Has anyone heard about this? What do you think? They're doing 2x / day application which would theoretically lead to more stable levels at least...
  5. Scott Myslinski

    Changing Testosterone Injection Timing

    Hello all, I'm looking to switch my 60 mg Testosterone Cypionate injections from Thursday at 7pm and Monday at 7am to Sunday at 7pm and Thursday at 7am (12 hours earlier each). Is this okay to do? Is the best way to just start one week by injecting 12 hours early and going from there? Thank...
  6. Scott Myslinski

    Lifting After Donating Blood

    How long should I wait to lift after donating blood? I've read at least 24 hours, but some say your red blood and immune system can be impaired for up to a week or weeks. I'm talking about a full-body, intense workout. Thanks, Davis
  7. Scott Myslinski

    Testosterone Cypionate / Grapeseed Oil Concentration

    Hi all - Curious for folks here. I understand Testosterone Cypionate is typically 100mg/L or 200mg/L (in my case 200mg/L), which is concentrated in grape seed oil. I'm wondering what % of the fluid I'm injecting is grapeseed oil vs. T? Personally I do 30mL at 200mg/L twice a week. Anyone know...
  8. Scott Myslinski

    Tapering down T dosage

    Hi all. I'm a patient of Defy medical and have a question about how safe it is to lower testosterone dosages after starting treatment. Here are my stats: -25 year old male, 160lb - don't drink/smoke, weight train 2x/week hard and eat very healthy whole foods -On T cypionate IM (80ml 2x per...
  9. Scott Myslinski

    T + HCG affordability and cost

    Hi all - I've recently been prescribed T cypionate (100 / week) + HCG (500iu 3x / week). I don't know how much the T will cost yet, but I'm getting the the HCG filled through CVS specialty pharmacy. They quoted me ~$110-120 / month for the HCG alone (Novarel). Does anyone have suggestions on...
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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