Testosterone Expiration Date Question

Jinzang

Member
I am using a vial of Testosterone Cypionate, 200 mg/ml in grapeseed oil. It has an six month expiration date and I received it two months after it was compounded. By my calculation there will still be 4 or 5 doses in the vial by the time I reach the expiration date. How hard and fast is the expiration date and what problems will there be if I continue using the vial past that date?
 
I agree with ERO, I wouldn't worry about going past the expiration date. But I would keep it out of the sun.
 
I read an article recently where a company did potency tests on several medications some as far back from the 1940's. It showed all the drugs basically kept their potency several years past the expiration dates. I think the drug tested from the 40's still showed like 85% potency. Not sure if injectable drugs were included
 

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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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