J Pediatr (2011) 159(4):55560
What Makes Retatrutide Different Retatrutide works by activating three hormone receptors at once: GLP-1, GIP, and glucagon

Deboned Chicken, Chicken Meal, Turkey Meal, Barley, Deboned Turkey, Pea Protein, Menhaden Fish Meal, Oats, Sorghum, Pea Fiber, Ground Miscanthus Grass, Dried Yeast, Chicken Fat (preserved with Mixed Tocopherols & Citric Acid), Natural Flavor, DL-Methionine, Dried Chicory Root, Taurine, Potassium Chloride, Salt, L-Carnitine, Choline Chloride, Zinc Proteinate, Vitamin E Supplement, Zinc Sulfate, Vitamin C (L-Ascorbyl-2-Polyphosphate), Iron Proteinate, Vitamin B3 (Niacin), Iron Sulfate, Copper Proteinate, Copper Sulfate, Vitamin A Supplement, Manganese Proteinate, Vitamin B1 (Thiamine Mononitrate), Vitamin B5 (Calcium Pantothenate), Vitamin B2 (Riboflavin), Dried Bacillus coagulans Fermentation Product, Vitamin B6 (Pyridoxine Hydrochloride), Manganous Oxide, Vitamin B7 (Biotin), Vitamin B12 Supplement, Vitamin D3 Supplement, Ethylenediamine Dihydroiodide, Vitamin B9 (Folic Acid), Sodium Selenite, Calcium Iodate, Rosemary Extract
If you see 100% purity, be cautious
This degradation by DPP-4 is evaded because most GLP-1 analogues contain an amino acid substitution at the N-terminal end