Recent content by Cataceous

  1. C

    Peak vs trough testosterone level

    That title is for those who don't provide proper attribution and quoting. It means there are studies demonstrating correlation, which may hint at causality, but are not definitive. I included one of several at the bottom. If you are truly interested then I can provide more of the references...
  2. C

    Peak vs trough testosterone level

    There is some evidence for such mental health issues, including anxiety. Per Grok: There is emerging evidence from psychology and related fields supporting the hypothesis that a lack of challenges or adversity—sometimes framed as excessive comfort, overprotection, or "coddling"—can contribute...
  3. C

    Peak vs trough testosterone level

    Setting aside strictly biochemical dysfunction, I think in some ways it's the opposite. We evolved to face challenges and overcome them. When everything is handed to you and you can't feel a sense of purpose or accomplishment then you get mental health issues.
  4. C

    About to Start a New Protocol

    Don't rely on the so-called direct free testosterone tests. They are useless, and the dose linearity might not be reflected in them. Instead either use equilibrium dialysis or Vermeulen calculated free testosterone. For the latter, measure SHBG and ideally albumin in addition to total...
  5. C

    Peak vs trough testosterone level

    It's human nature to strive for better. If we settled for "good enough" then we'd still be cave dwellers.
  6. C

    Peak vs trough testosterone level

    You can estimate the peak-trough ratio based on the half-life of the testosterone ester. The estimate I use for weekly injections of testosterone cypionate is 2.5, which stems from a five-day half-life. This would put your peak at over 1,500 ng/dL. However, half-lives vary among individuals, so...
  7. C

    Federal gun laws and illegal anabolic steroids, a sword of Damocles?

    I still makes me uneasy that the hundreds of seldom-enforced laws on the books make it fairly simple for government/law enforcement to make anyone miserable, even for arbitrary reasons. I suppose this wide discretion will be tolerated as long as the public perceives it being directed at the...
  8. C

    Federal gun laws and illegal anabolic steroids, a sword of Damocles?

    Don't misconstrue the original post as any kind of defense of this crackhead. Rather, it's a caution to those who don't have a daddy who can pardon them.
  9. C

    Federal gun laws and illegal anabolic steroids, a sword of Damocles?

    Where did I say I would? But spare me the pious crap about violating laws and taking risks when you're telling others to follow your lead and self-prescribe from ReliableRx. Should we call you Dr. AI instead? Says the guy going off on some tangent in response to a simple hypothetical example...
  10. C

    Federal gun laws and illegal anabolic steroids, a sword of Damocles?

    Easy for you to say Mr. AI, but most law-abiding gun owners aren't going to suspect that accepting a sleep aid could in theory result in 10 years in prison.
  11. C

    Federal gun laws and illegal anabolic steroids, a sword of Damocles?

    If you follow the news much then you may know that Hunter Biden was bitten by a federal gun law—where it's illegal to possess a gun if you use drugs illegally. Apparently the law is now being challenged in court by someone who used marijuana. I was curious and wanted to know if this applies to...
  12. C

    About to Start a New Protocol

    The week-long stabilization period is reasonable unless you're converting from a long-lived injected testosterone ester. Then the influence could last a few weeks leading to uncertainty about levels. Waiting a full three months would be good, but maybe not necessary. If you've already been on...
  13. C

    About to Start a New Protocol

    If anything it would be about the half-life rather than the SHBG "charge" time. A good rule of thumb is to allow five half-lives for stabilization. Xyosted is somewhat unusual because the lack of excipients extends its half-life to 10 days, about double that of conventional formulations of...
  14. C

    About to Start a New Protocol

    Keep in mind that transdermal testosterone is only relatively short-acting—that is, when compared to something like testosterone cypionate injections. However, it is slower than nasal gels or oral formulations. The reason why is that the skin acts as a reservoir, gradually releasing the...
  15. C

    About to Start a New Protocol

    This is correct. Maybe you're not understanding that an absorbed dose of 100 mg T is insanely high for relatively fast-acting testosterone. If done on a daily basis that's like taking 1,000 mg of testosterone cypionate every week. Or, looking at it another way, healthy young men typically make...
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

Back
Top