Storage conditions for lyophilized peptides

[Lazarev]

Hello everyone,

First post here, been lurking for a long time and I'm finally getting started on a cycle. I work in pharma/medical devices so I'm very knowledgeable when it comes to most things related, including manufacturing, but peptides have me completely dumbfounded.

I see very varying opinions and data on how lyophilized peptides should be stored. And on top of that it depends on the peptide too. From what I understand HGH is decently stable lyophilized as long as the temp doesn't change too much and it's away from light/moisture. But considering it's UGL it obviously won't be as stable as pharma-grade so it's most likely less.

While I agree that obviously reconstituted peptides should be stored in the fridge and used short-term, for lyophilized, some say drawer is fine, most people recommend to store it in the freezer, but wouldn't that increase the risk of moisture getting in and degrading the peptide/forming aggregates ?

I have Retatrutide and HCG on hand, so I'm wondering how I should store it for the best effectiveness ? Even if they'll be used in a relatively short timespan (~3 months, not much into stocking up until I'm sure about everything related to safety/storage/usage/effectiveness etc)

If you have any data, research and such, fully open to discussing, learning and seeing what you have

Thanks a lot ! <3

 

[AlexDavis43]

Meanwhile serostim is stored at room temp lol

1. Serostim is stored at room temp, has higher aggregates ("dimer"), mediocre purity (mid-90's), and great anecdotal results

2. Lobster's UGL vacuumless 50 IU vial showing no degradation at 6 months

3. Some of the best IGF1 responses from guys using non-filtered GH

4. Study showing GH with high aggregates doesn't cause immunogenicity or reduced GH efficacy

Conclusion: I think we're making progress in understanding things in the real world, as opposed to the professors' theories based on "the world's most renowned peptide gurus" and FDA/Pharma powerpoint presentations