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  1. C

    Terrible chest acne

    I know obviously that my T going up would lead to some acne but my right side of my chest up to my clavicle looks terrible. My face is fine and my back is fine until the small of my back which looks really bad as well. Funny enough my left side of my chest is clear. Most of you guys likely...
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    First injection 2 hours ago now I feel lightheaded?

    Hey fellas I knew switching to injections I would be here a bunch but I injected two hours ago (my first) and now I feel a bit lightheaded. Kind of like I did when I used to take hydroxycut and the original xeneadrine. I am a paramedic thus not afraid of needles or getting poked so this is...
  3. C

    I quit my Androgel yesterday......

    Initially my total spiked to near 600 (from 230) and my free T jumped to 21 with my estradiol staying down. I really thought that we were on the right track so my PCP upgraded my dosage a little as I was not feeling any better and my next lab work had went down to around 300 something. That...
  4. C

    Do you tend to build up a tolerance to testosterone TRT?

    Hey there fellas I have been absent from the forum here for quite awhile but just had some somewhat disturbing results. I am at work tonight so my exact labs/ranges are not in front of me but I can come close. Initial test in April. Total 259 free 6. I started Androgel 2.5 Grams. My total...
  5. C

    Autoimmune disease in relation to testosterone.

    I know quite a few members on this site have different forms of autoimmune diseases and I am curious about its relation to low T based on what you have found. I have ulcerative collitis diagnosed a few years ago and it seemed to correlate with my lower energy levels and an overall downgrade in...
  6. C

    Androgel 1% 2.5gm Question

    I started my treatment about 6 days ago and feel absolutely nothing. Still fatigued with possibly a touch more energy due to an active effort by myself to help the drug and kick start "a new life" so to speak. I know injections take some time as Nelsons' graph shows but I thought transdermal...
  7. C

    A possible option for those who are struggling to find a TRT specialist.

    I was at a loss finding a knowledgeable Dr. to treat me after I found this site and started to educate myself. Prior to finding this site I would have just went with what a Dr. said but the knowledge and information from here changed my view on the matter. I have fairly low T (low 200s) and...
  8. C

    This site is amazing.

    As a new member to this site and a new patient of low T the information and help I have received from this site has armed me with the knowledge I need to help my Dr. help me. Not to mention having a place to ask those questions that you may normally shy away from asking. The admin and members...
  9. C

    Finally found somewhere I can communicate with people.

    Boy am I glad I found this forum. My name is Cody, I am a 34 year old firefighter/paramedic in Colorado. I am married and have 3 little ones (6, 3, 5 months). I recently had my T and thyroid checked due to many symptoms and just generally not feeling myself the last few years. I...
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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