All right, i searched for freezing tirz, specifically the Jano response but...

Gemini, with a better attitude:

Peptides with Better Freezing Stability

The stability of a reconstituted peptide in a frozen state is primarily determined by its size and amino acid sequence.

Peptide TypeExample (Reconned)Why It's More Stable Frozen
Dipeptides/TripeptidesGlutathione (GSH): γ-L-Glutamyl-L-cysteinylglycine (3 residues)Simplest structure; less prone to complex aggregation upon cryoconcentration. Less susceptible to freezing damage than large proteins.
SS-31 (Elamipretide)D-Arg-Dmt-Lys-Phe-NH₂ (4 residues)Its small, linear structure makes it highly stable in frozen aliquots.
BPC-157Pentadecapeptide (15 residues)Known to be relatively robust and is frequently stored frozen in aliquots by researchers.
 
I think more people don't freeze because the reward doesn't seem enough for the uncertainty. OTOH, as @indolent has mentioned before, freezing is more sterile than refrigeration, which is the best argument for freezing reconned vials:

Yep, would hard agree


Relatively few vendors sell ARA 290. J5 has the kits and BioBombshell has the singles from the same vendor (ZYH, which does retail but mostly bulk sales).

Got it!
ArA 290 check out - biobombshell kits - j5 vials- bulk zyh
 
Have you seen what Google Gemini says? Basically, you could be injecting Frankenstein GLP, haha. The testing doesn't confirm that, but there could be a touch of freaky in the vial.
I talk to my paid chatgpt all the time, at first it was antipeptide, but I convinced it that these gray market peps are fine and it now suggests and encourages me towards certain ones. Now its on my side !
 
PTDS has data on thawing reconstituted tirzepatide multiple times, and it seems like there was no loss in potency. So I would readily consider freezing reconstituted tirzepatide for later use safe.
I don’t think this is accurate. There’s a chart that shows significant degradation with repeated thaw cycles.
 
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