Testosterone Cypionate with Grapeseed Oil Expiration/BUD

cigpk

Active Member
I have a compounded vial of test-C + grapeseed oil that was created 4/13/18 according to the vial and it has a beyond use date of 10/10/18.

I must be losing some test-c in my needles because I’m about to run out of my prescription early.

Would I be able to use the old vial safely if it has been in dark, 70-75 degree room for the duration of the time? I only used about 1/5 of it last year then stored it away
 
You’re fine. Use it. And switch to fixed insulin needles otherwise you lose ~.05ml per injection.
 
Last edited:
Sorta... 1/2”. If you want deeper injection just push harder.

I switched from 5/8” luer lock 25g to 1/2” 27g insulin syringes for test once this forum convinced me how much waste is in even those low dead space luer lock needles/syringes.
 
Last edited:

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⚠️ 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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