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  1. J

    Which "part" of the HPTA is the hardest to "turn on" during PCT?

    I am getting off testosterone after two years (if you want back story, you can read my previous posts, and I'm unable to perform any conventional PCT as I cannot tolerate SERMs. I have, however, been entertaining the idea of using GnRH or hCG as a way to "prime" the body before coming off TRT...
  2. J

    SERM "PCT" Alternatives

    I'm strongly considering getting off TRT after being on 1.5 years and worsening my health tremendously. Since I'm suffering from an abundance of low E2 symptoms which I would probably exacerbate majorly if I were to use SERMs. Are there any other good alternatives? Anything that antagonizes...
  3. J

    Very high FT on 70mg/wk?

    I just got my blood results back. I have been lowering my testosterone dose significantly over time, as I was experiencing many side effects on higher doses, which I thought may have been in part due to the high T:E2 ratio (seemed it didn't rise proportionally). I'm running 70mg of test cyp per...
  4. J

    Help Smoothing this Transition from Blend to Test E? (Math)

    I'm currently running a daily blend consisting of 5.625mg testosterone enanthate and 4.5 mg (i.e., a 5:4 ratio of test E to test P). I am hoping to transition off the test propionate back to solely enanthate, mostly for quality control reasons (I can only buy the propionate online, and given...
  5. J

    Paradoxical Increase in Adrenal Activity from Exogenous Test?

    All the literature I've read suggests that exogenous testosterone tends to have a suppressive effect on adrenal (and potentially thyroid) activity. It makes sense -- if your body has enough hormones, you won't be generating as much pregnenolone -> other hormones (including cortisol downstream)...
  6. J

    Has anyone felt better with more fluctuations (perhaps mimicking diurnal patterns)?

    Most TRT regimens seem to use test C and test E and keep levels relatively stable. Most using these don't experience the natural diurnal fluctuations that would occur naturally (rising in morning, lowering in afternoon, and rising again at night / early am). Has anyone felt better after adding...
  7. J

    Debate - Androgens: Estrogen ratio vs Overall Hormone Levels.

    I searched here, but I couldn't find any in-depth discussions about this specific issue. If anyone has any literature they would mind sharing on this topic, I would be extremely interested to read it. A couple questions: 1) Will you suffer from having too high of hormones, generally...
  8. J

    HELP - Heat Rashes, ED, and Cracking Joints - A journey Riddle with Side Effects

    To preface this, I am a post-drug patient with lasting sexual side effects (yes, PFS, PSSD, and PAS exist and I will not argue this). I have had enduring sexual dysfunction (dead libido, loss of morning wood, weak erections, etc.) for about 5 years since discontinuing psychiatric drugs. Most...
  9. J

    Adipsia/Complete Loss of Thirst + Skin Elasticity Changes

    To preface this, I've been on TRT at 200mg/wk, daily IM, for 8 weeks. I recently got labs and sodium, potassium, chloride and all blood markers came back within normal range. Before starting TRT, my thirst levels were normal and I didn’t have these… skin elasticity issues. I don't know exactly...
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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