I ordered L15 late sept, and it is an immediate burn on injection that goes away after about an hour. I use bac water and draw and inject with two different needles. I ph tested it and it’s 7, just like Ozempic, and some USA vendor sema I have on hand. It doesn’t burn til I push the liquid then it’s immediate. No delayed redness or itching after, which would suggest an immune response.
It is very effective, and broke through my sema plateau, also they were quick to offer replacement or refund when I emailed them. They say they are working on a new formulation.
I think the fact that I recvd my order within 3 days, paid with Alipay at $1.66/mg, the product effectiveness, and their customer service kind of makes the sting worth it.