Tirzepatide is viewed as more stable over many years than retatrutide, which some report can turn cloudy. Participants already using the drugs plan to hold three to six years of tirzepatide and retatrutide plus smaller amounts of cagrilintide and semaglutide. Other peptides are bought in modest kits and expected to last two to three years refrigerated. Stocking decisions are driven by concerns over future ordering difficulties rather than uncertainty about the compounds themselves.
What this discussion establishesExact shelf lives of peptides newer than retatrutide
Nothing here is advice.
Hello everyone. I need to place some large orders and build up a big supply because of coming restrictions. There are sources inside the US that would be easier for someone in Canada than going overseas. Which GLP compounds hold up best over time? From memory tirzepatide can last about ten years while retatrutide does not. Retatrutide also seems to be showing cloudiness problems lately. What other options would work better than retatrutide? I also want peptides that can stay good for years when kept frozen. I will need bacteriostatic water too.
You should try the GLP drugs first to see whether they suit you and whether the side effects stay manageable. Keeping a decade supply of something that makes you ill even at one milligram would not help much. Tirzepatide does remain more stable over long periods than retatrutide though.
Yeah ten years is probably more than needed but tirzepatide looks like it will hold up. Thanks for confirming retatrutide is less stable. I am also thinking about possible new government powers around mail inspection and other areas.
Thanks for the concern. I am fine with the products. I simply want to avoid the ordering problems mentioned earlier and therefore need peptides and GLPs that will last at least one to three years and preferably longer. The real question is which peptides have a shelf life shorter than three years.
Sorry, I meant I have not tried any of the ones that came after retatrutide.
With several new weight-loss drugs still in trials I am only stocking three to four years of GLPs at most. When something better appears I will want to switch.
For me retatrutide and tirzepatide are basically necessary to stay healthy and avoid regaining a large amount of weight, so five years feels like reasonable insurance. Newer weight-loss drugs will appear and some older ones will get cheaper, especially semaglutide, but the newest versions will stay expensive unless obtained through grey channels. Drug companies seem to be moving toward monoclonal antibodies or small molecules instead of peptides because peptides are easy to copy.
I am putting away a decent amount of tirzepatide. It works so far and I control side effects with BPC and KPV. At middle to high doses the supply would last more than six years. If only maintenance dosing is needed later it would last even longer. I also have five to six years of retatrutide at middle doses, three to four years of cagrilintide, and a bit less semaglutide on the way. I like GLPs and wanted combinations available to cover long-term health needs. For other peptides I tried single vials, found a few interesting ones, and ordered a couple of kits each. Kept in the fridge they should be good for at least two to three years while I use them. If some do not last that long I will simply replace them.
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