Ancestors

Written by Doc Impossible on 2025-01-22 at 21:20

A small, friendly reminder:

Injectable hormones are suspended in castor oil. Castor oil is really good at keeping those hormones dissolved.

But castor oil goes rancid in 1-2 years. Faster if you don't keep it in a dark place. And rancid castor oil doesn't work properly, and can even hurt you.

So, please keep an eye on the expiration date of any vial of hormones you have or get, and discard anything more than two years past it's date of manufacture.

Because you can't tell if castor oil has gone rancid by sight. Only smell or texture.

And you can't smell or feel it in a sealed vial.

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Written by Shannon McKinnion on 2025-01-22 at 21:28

@Impossible_PhD - If I remember

Estradiol valerate uses castor oil, (sometimes sesame oil)

Estradiol cypionate uses cottonseed oil.

That being said, they both have roughly 12-24 months and really like a cool dark place.

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Written by Doc Impossible on 2025-01-22 at 21:43

@shannon_mck I was pretty sure cyp used castor oil. Almost all Injectables do.

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Written by Shannon McKinnion on 2025-01-22 at 22:07

@Impossible_PhD - I doublechecked the formulary, and I can't find castor oil in cyp. (and one of the reasons I was given for why cyp takes longer to break down is because it's not castor).

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Written by Doc Impossible on 2025-01-22 at 22:16

@shannon_mck mmmm from the data sheets I can find, cottonseed oil goes rancid faster that castor, not slower. Max tested life before rancidity was just under 650 days, from the Science Direct source I found.

I'd love a source that says otherwise.

EDIT: Someone found information showing otherwise. Please disregard this!

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Toot

Written by Raeve :spinnycat_enby: :neocat_amogus: on 2025-01-22 at 22:20

@Impossible_PhD@hachyderm.io @shannon_mck@chaosfem.tw can't even be sure that's an issue with how low-concentration cypionate is anyway, difficult to build a reserve when one only gets maybe a single extra dose from a vial

am curious about diy suppliers who just specify 'mct' though

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Descendants

Written by Doc Impossible on 2025-01-22 at 22:36

@raeve @shannon_mck the issue isn't the concentration, it's the carrier oil going rancid. Once chemical compounds change, all sort of things go up in the air, and the needle moves from "safe" to "not safe."

Note: this doesn't mean "unsafe." it's that nebulous, risky never-never land.

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Written by Raeve :spinnycat_enby: :neocat_amogus: on 2025-01-22 at 22:38

@Impossible_PhD@hachyderm.io @shannon_mck@chaosfem.tw yeah I'm just speaking to whether a vial of US cypionate could even reach that point, as the doses-per-vial doesn't have any excess

... which is largely why I switched to valerate and the expiration actually becomes a concern ​:ablobcatcoffee:​

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Written by Doc Impossible on 2025-01-22 at 22:49

@raeve @shannon_mck update: someone elsewhere found safety data that says otherwise, so please disregard what I Siad about cottonseed oil!

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