glp-1 vitamin drops Supplement, 16-in-1 GLP-1 Liquid with Berberine, Ceylon Cinnamon, Green Tea, Chromium & Resveratrol, Naturally GLP 1 Support for Metabolism, Gut Digestion, Vegan Stawberry Flavor, 2 Fl Oz Trimova Drops - Natural GLP-1

And that's the best comparator

Gros R, You X, Baggio LL, Kabir MG, Mungrue IN, Parker TG, Huang Q, Drucker DJ, Husain M: Cardiac function in mice lacking the glucagon-like peptide-1 receptor

Gut Protection May help with ulcers, leaky gut, and intestinal inflammation

Supernatants were analysed by SDSPAGE gel electrophoresis and western blotting, using anti-phosphorylated EGFR (Y1068 1:1,000 dilution) rabbit polyclonal antibody or anti-phosphorylated Met (Y1234/1235, 1:1,000 dilution) (D26) rabbit mAb

The general rule of thumb is to go up slowly, and to use the lowest effective dose, thus minimizing the chance of unwanted side effects