Tirz powder still good?

[Charlie_11]

13 months is the edge for refrigerated lyophilized powder - effective content is likely reduced but not zero. Reconstituting a small dose and comparing the appetite response against expected gives you the real potency read.

 

[Quinn]

Tirzepatide powder at 13 months unmixed depends heavily on storage conditions - lyophilized peptides at -20C are generally stable 2-3 years, but room-temperature or fridge storage at that age is a real degradation risk. Testing or sourcing fresh is the conservative call.

 

[Jordan]

HCG lyophilized powder form varies by manufacturer - loose powder and puck formats reconstitute the same way with BAC water. The form doesn't affect usability; what matters is whether it goes into clear solution without particulates when you add the BAC.