Lab Timing: Gels and Hcg

galaxy

Member
Hi all, this forum has been very helpful answering several questions for me on my upcoming TRT protocol. Per another thread that I have going I was recently prescribed HCG. I've confirmed that the ideal timing for drawing labs on gels (which I'm doing) is 2 hours afterwards. What's the ideal time if I layer in HCG 500 IU 2/week injection (Total 1,000 IU/week). Would it be trough so before shot of HCG? Or immediately after HCG injection in order to gauge E2 Conversion? Or midpoint?
 
Where did you see the info on testing T two hours after gel application? How would that be an accurate reflection of your trough?

Gels and creams you do peak. I was told 4 hours post applcation.

As for HCG I would think reaching steady state trumps any peak or trough HCG has.
 
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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.

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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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