Test Cyp Injection Method Impacting T Levels?

psaufan

Member
For just over 2 years I injected IM with a 25g 1" needle into my glutes...E3D 80mg. I was doing good as far a my levels and such. My wife did the injection 85% of the time and I found it hard to twist around (herniated disc in lower back) to do the injection myself, so I made a switch right at six months ago. I began to inject EOD into my deltoid muscle shallow IM with a 25g 1/2" needle. The injection is approx 52mg to 53mg.

Two months ago, I noticed my libido had diminished greatly...not much of a sex drive...no morning wood...no desire there. Feeling tired most days. Is it safe to assume that the change in injection protocol could be effecting my absorption of the test cyp?

If I go back to the glutes, is it okay for me to do a shallow IM into the thigh on those occasions in which I need to do it myself?
 
I alternate injection sites between shoulders and quads and notice no difference. I use 29 gauge 1/2" insulin syringes and am over 30% BF.

Libodo decline I'm betting is estrogen related, not many guys can inject 80mg 2x weekly and not have high estrogen sides. Low mood, low libido, weak erections, feeling hot, night sweats and feeling tired are all I experience when E2 is high.

Erection quality is close tied to your estrogen levels. An easy fix is reduce your dosage after you've done labs to see where you are.
 
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I alternate injection sites between shoulders and quads and notice no difference. I use 29 gauge 1/2" insulin syringes and am over 30% BF.

Libodo decline I'm betting is estrogen related, not many guys can inject 80mg 2x weekly and not have high estrogen sides. Low mood, low libido, weak erections, feeling hot, night sweats and feeling tired are all I experience when E2 is high.

Erection quality is close tied to your estrogen levels. An easy fix is reduce your dosage after you've done labs to see where you are.

Thanks for the input...I am getting labs done next Wednesday and will post results here.
 
I don't have any science to support this, but personal experience. I started with 1.5" injections in my thigh and was doing great. I switched to 1" needle and experience the same symptoms you did. I've switched back to 1.5" needle and I'm good. I don't know my BMI, but I'm not really fat or anthing. For whatever reason, the deeper injection works well for me. I look down at my leg, divide into into four sections (draw a plus sign in the middle, on the top of your leg sitting down. I inject in the closest to you on the right (or left if you're on the left leg). 25 gauge 1.5" needle, totally painless if I stretch beforehand. Hurts like the dickens if I don't stretch before.



For just over 2 years I injected IM with a 25g 1" needle into my glutes...E3D 80mg. I was doing good as far a my levels and such. My wife did the injection 85% of the time and I found it hard to twist around (herniated disc in lower back) to do the injection myself, so I made a switch right at six months ago. I began to inject EOD into my deltoid muscle shallow IM with a 25g 1/2" needle. The injection is approx 52mg to 53mg.

Two months ago, I noticed my libido had diminished greatly...not much of a sex drive...no morning wood...no desire there. Feeling tired most days. Is it safe to assume that the change in injection protocol could be effecting my absorption of the test cyp?

If I go back to the glutes, is it okay for me to do a shallow IM into the thigh on those occasions in which I need to do it myself?
 
Is the shallow IM reaching the muscle? If not it will be subq. My T levels on subq are way lower compared to IM. Of course everyone is different. In your case i would make sure the testosterone oil is getting in to the muscle
 
I inject twice weekly with a 31 g 6mm insulin syringe sub cutaneously in the butt. I’ve been doing this for seven years. It has worked great for me.
 

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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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