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  1. R

    Aspirating while injecting

    I am injecting into quad. Aspirating is not necessery? Can it have some negative effect, though? When you push the plunger really much thus causing a lot of air to be drawn into a syringe from a muscle and then injecting the testosterone.
  2. R

    Aspirating while injecting

    Hi. I have a question about aspiration. Does it matter how much you're going to pull the pulnger of a syringe? Can you pull it back too much? I mean, when i aspirate there's plenty of air going into the syringe from the muscle. Thanks for your responses and opinions.
  3. R

    Storing testosterone in a syringe

    Thanks. One less thing to worry about i guess.
  4. R

    Storing testosterone in a syringe

    Thanks, that's good to know too. However, in this question i had in mind a situation where there's plenty of air in the syringe in which i am storing testosterone for 3 days (until the next shot). I was wondering if that could effect the testosterone in some way.
  5. R

    Storing testosterone in a syringe

    Hello. I am using testosterone which is in vials (1ml - 100mg) and i am storing the half of which i've drawn from the vials in the syringe since i am injecting 50mg per 3 days. The question is, can the air which is in the syringe together with testosterone effect it somehow negatively? Thank you...
  6. R

    50mg every 3 days Protocol

    Hello. I've seen many suggestions on this forum that you should inject 50mg every 3.5 days. What about injecting every 3 days? I am thinking of doing that. I have a higher SHBG (~50). Higher dosage at once don't do me that much good due to problem with estriadol. Being on 100mg per week i had 40...
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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