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  1. W

    Can 5/16 needle be used for shallow IM (deltoid)?

    My intention is not to rehash the endless IM versus Subq debate around here. I am merely curious whether a shorter 5/16" needle can be used in deltoid for shallow IM. Most including myself would typically use a minimum of 1/2" for shallow IM. However, I find that 1/2" occasional gives a...
  2. W

    Test results for 8mg daily blend (Enan + Prop)

    Inspired by @Cataceous, I have been tinkering with Enan/Prop blends for the past year. The idea behind the daily blend is to re-introduce daily T fluctuation. Inject first thing in morning to peak early in day and let levels come down overnight. For example, Cat’s personal data based on 4:3...
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    Could massage gun speed up absorption of T injection?

    A couple of months ago, I purchased a massage gun to loosen my chronically tight calves for running. It worked very well for this purpose. I was surprised how at how powerful and deep the massage gun penetrates. My monkey brain got to thinking, why not use it on my subq TRT injection sites...
  4. W

    Using protocol change to spike dopamine?

    I have kept a crude TRT journal over the last several years, adding notes every week or so. On occasion, I will review the journal to spot any patterns or conclusions that I can draw with a reasonably high degree of certainty. This is how I often find myself repeating the same mistakes over...
  5. W

    My notes on Empower nasal T gel experiment

    I recently undertook a very unscientific 10 week experiment with Empower's nasal testosterone gel (similar to Natesto) to see if such a short-acting form of T could increase my baseline natural production. The idea is consistent with some of the Natesto studies that @madman has cited. NASAL T...
  6. 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...
  7. W

    Tips for preparing 1 week's worth of pre-filled insulin syringes?

    I have been injecting daily (propionate) for some time now using 31 gauge .3cc 5/16 insulin syringes. I want to start preparing a week's worth of prefilled insulin syringes at one time for sake of convenience. My main concern is how to keep the process sterile. I am assuming that backfilling...
  8. W

    Best injection technique for low dose daily subcutaneous testosterone

    I switched this year from E3.5 injections to low dose daily injections thanks to @Cataceous. I'm currently injecting 8mg each morning of Propionate-only after trying a blend of Cypionate and Prop. Like many on here, I started with harpoon needles from my general physician and than graduated...
  9. W

    Tips on how to blend propionate with enanthate (or cypionate)?

    I have been having some success with low dose daily propionate for the last several months. Dose levels have ranged from 8-10 mg injected every morning after waking. Overall, it has been a far better experience than my previous cypionate protocol of 80-100 per week (split every 3.5 days)...
  10. W

    My pre-workout Natesto experiment - Embrace your natural trough!

    What if you could enjoy the benefits of exogenous testosterone - even if on a limited basis - while minimizing many of the usual side effects? I was determined to find out through a very unscientific experiment with Natesto, a short-acting nasal testosterone gel discussed numerous times on...
  11. W

    Success with 1:1 ratio of ***:THC for sleep problems

    Like many on this forum, I struggle mightily with sleep problems - in my case, the inability to stay asleep throughout the night. A poor night’s sleep often ruins the next day to the point where I often feels like sleep is more important than testosterone. I have tried numerous sleep drugs...
  12. W

    How do athletes microdose without suppressing natural T?

    Before I launch into my (long) post, I would first like to thank the members of this forum for being so generous in sharing their knowledge. I have found the first hand experience of people on this forum to be lightyears ahead of the the standard TRT protocol endorsed by the medical...
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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