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  1. U

    Insulin syringe - air bubbles

    I use 30g needles. I backfill them though so knowing the dosage is right is not an issue. I then add hcg which obviously doesn't mix. I don't have issues with the bubbles injecting in the delts daily.
  2. U

    Testosterone and immunity

    I don't think I've been sick in 2 yrs on TRT. I do have pretty bad hay fever most of the year. It doesn't seem to affect that at all.
  3. U

    Hey guys, would I qualify for TRT based on my labs?

    Matter of opinion. I don't think it's a big deal. Your case is is pretty interesting imo for a couple of reasons. One you are shooting for a natural TT that is top of the range. Odds are against that being achievable. The other deal is people report there is a 3x rule. You need to triple your...
  4. U

    Hey guys, would I qualify for TRT based on my labs?

    Post the full labs. You won't solve this puzzle by going on trt without a good baseline anyway. I doubt you will see the results you expect on TRT unless you had naturally top of range levels in the past. Just be educated is my advise. You don't sound knowledgeable. It's your body so try it if...
  5. U

    DEFY INJECTION DOSING: Running Out of Test too Soon

    Ah. Makes much more sense. You'd just have to check with them obviously. Probably the the best change I ever made to my protocol was daily injections in the delts with a 30g needle. I backload them usually 7 days worth at a time. No waste or pain. Huge help with acne, and more stable moods...
  6. U

    High histamine = high libido

    So someone with allergy problems should have a high libido? Doesn't add up.
  7. U

    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...
  8. U

    ccc

    ...
  9. U

    Low T genetics

    Dad is in his 60s with TT in the 900s. 35 and hypogonadal. I had typical high testosterone in my teens as far as I can tell. Symptoms showed up early 20s. Figured it out at 33. Found a pituitary adenoma, but supposedly it is not the cause. I'm not really convinced.
  10. U

    Still Dialing In at 1 Year

    ....
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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