Oops - Tirz in the fridge, not freezer!

L

LabCrew

Member
So, I jumped the gun and didn't freeze my peptides right away. Got 'em in late 2024. Anyone know what happens when you refrigerate instead? Just tossed them in the freezer today. Pretty sure they've degraded a bit, but hopefully still good to go. Bought a bunch too, ugh!

Appreciate any help!
 
I doubt it's even that much. Some companies are shipping stuff that's been sitting at room temp for months. Most peptides can handle room temp for quite a while, like maybe even a year. It would be interesting to see some of that older stuff tested to see how much it actually degrades.
 
Question: Does testing show a drop in effectiveness, or just degradation?

I recently tested some stuff I left out for a couple of months, and it came back the same as the original testing. I've heard tirz is pretty stable, but what exactly does testing measure?
 
Degradation is when a med or chemical loses its mojo, reducing its strength. Think of it like this...

When you pick up a Rx, it's already degrading, hence the expiration date. Test it a month after it's made? Maybe 99% potency. Six months? 92%. Still effective, maybe. But a year later, near the expiration? 82%. Still safe*, but not as effective. Heat and light speed things up. Still safe, but might not work as well, and that lack of effectiveness could be a problem.

Nobody wants to waste money on weak Tirz. We want high purity and potency so it works!

*Some meds become toxic after expiring. GLP-1s, I don't think those do.
 
So, does testing show how effective it *currently* is compared to when it was first made? If tirz degrades, does it still test as tirz? Is that what "purity" means, or is it something else?
 
I've been seeing more about compounded GLP-1s lately. Anyone know anything about the safety/legality of those?
 
Like my Tirz cold and small dosage. Minus 80 is overkill honestly - why keep vials five years? Looking for a decent compact fridge with minus 18 freezer. Brand doesn't matter if it works.
 
what side effects are people dealing with that don't get talked about much? like hairloss, feeling cold, exhaustion... if you dealt with any of those, what helped?
 
Lyophilized is fairly stable in the fridge for a few weeks or even months. It's far from ideal but you're probably okay if the vials weren't compromised. I'd reconstitute a small test amount first and see how it looks - any unusual cloudiness is a red flag.
 
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