Are there any for sale that are pre-mixed? I don't check their site daily to see new additions and, thus far, I'm the only one replying. And, as a potential customer, I'd hope you HAVE checked the site out
To date NO one ships pre-mixed and frozen who are reputable unless it's pre-loaded and in a pin (and even then not frozen) . It makes no sense to do so as they are in water as it'd break the glass.
I can't speak as to how they are packaged for dispatch but would hope they are somewhat insulated mixed or otherwise. Obviously they can't control the temperature of the shippers transport and warehouse or your mailing box.
You should always contact a company direct in the first instance. Make sense right?
Just by way of example even if they did ship frozen it wouldn't arrive frozen right? Cool or cold for sure and that's if it came real quick. So most here wouldn't know if it had been shipped frozen.
Not a peptide thing but I've had stuff come here (food) which was shipped frozen and the box was lined with sheep wool insulating packages and arrived over night still chilled but not frozen