Avoid freezing the reconstituted solution, since freezethaw can denature the peptide
That said, the strongest test of a circulation claim intermittent claudication, or leg pain from reduced blood flow when walking came back negative in the 2013 Cochrane review: no statistically significant improvement in pain-free walking distance vs placebo across pooled trials[7]Ginkgo for Intermittent Claudication Cochrane View source

When discussing weight loss medicines, it is helpful to ask your GP or specialist about: Currently licensed and NICE-approved options available to you on the NHS or privately Eligibility criteria for specific treatments and what monitoring would be required Realistic expectations regarding weight loss outcomes, timescales, and the importance of lifestyle changes alongside medication Potential side effects , including gastrointestinal symptoms commonly associated with GLP-1 receptor agonists, and how these are managed If you experience any suspected side effects from a weight management medicine, you can report these directly to the MHRA via the Yellow Card Scheme (available at yellowcard.mhra.gov.uk)
Is Vesco Pharma's Gluta C 1000 useful when and why
GLP-1 medications prescribed with in-person consultations, lab monitoring, and ongoing support
Meth., 207, 157-168 2