insulin needle

  1. W

    Possible high estrogen symptoms from my injection.

    Hi guys. You are probably sick of me by now but here it goes. So im 3 weeks into my new dose of 94mg a week split into every 3.5 days. Yesterday after my injection all day my anxiety ramped up and felt so off. No energy, felt off balance at times, and just wanted to rest. I take insulin...
  2. B

    Pre TRT Blood Labs - 27 Year Old Male

    Hello everyone, I’m a 27-year-old male, 155 lbs, 5”11 and I want to share my journey so far. I’ve been athletic my whole life, playing soccer, hockey, and rugby. I was even on my national soccer team for a few years. In high school, I transitioned to competitive kickboxing. I went through...
  3. T

    Are millilitre amounts consistent across syringes?

    I am switching from insulin needle to a more typical syringe with (reduced) deadspace, to try out deeper IM injections. What is confusing is that insulin needles have no dead space whilst typical syringes do. Making the switch I really want to avoid fluctuations, I have a narrow dose where I...
  4. W

    Daily SUBQers: 5 stars for BD Ultra-Fine Insulin Syringe - 31G 3/10cc 5/16"

    Like many on here, I started with harpoon needles from my general physician and then graduated (mercifully) to 29 gauge x 1/2 fixed insulin needles for shallow IM thanks to the advice of this forum. A year ago I moved on to low dose daily SUBQ and began using 31 gauge x 5/16. For insulin...
  5. G

    Shallow IM Injection

    In my previous thread I asked about using slin pins, but didn’t necessarily say it was for shallow IM instead of sub-q. I’m just making sure that it will actually do something, correct? Is there a difference between injection 1 inch into muscle, than a half inch into muscle, versus just a...
  6. G

    Insulin Syringe Help

    I’m tired of losing so much testosterone with my twice per week shots in the tip of the 23g needle. It’s like a quarter ml or something, so by the time I’m supposed to run out of test, if I was using the dose I’m prescribed, I’d run out way too fast. So anyway, when you draw with a slin pin, do...
  7. C

    HCG Injection Sites

    I'm a bit of a needle phobic. My wife administers my TRT (glutes) while I have been taking care of the twice weekly HCG shots in my belly. For whatever reason this still causes me stress. In an attempt to reduce stress, last night I had my wife inject HCG into my glute, subcutaneously. I felt...
  8. B

    Insulin Needle Question and shout out To AllegroMedical

    Hey guys- not sure this is the right thread, so please feel free to move elsewhere if appropriate, mods. Quick shoutout to Allegro Medical- I ordered these 28g insulin syringes Monday night with 99c promo shipping. They estimated 7-10 days to Florida where I live and it showed up just after...
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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