Third, marketplace "bacteriostatic water" listings have been documented (per the cloudy peptide reference) to actually be mislabeled saline a product that looks like bac water on the label but lacks benzyl alcohol entirely
Going lower is untested territory
Major Ingredients Yeast Extract (L-Glutathione Yeast Extract 50%, China), Pullulan, Vitamin C, Hyaluronic Acid (Korea), Water Soluble Milk Thistle [Milk Thistle Extract Powder (Poland)], Polysorbate 20, Natural Flavor (Natural Lemon Lime Flavor), Enzymatically Modified Stevia Glucosyl Stevia, Glycerine, Xylitol, MixtureVitamin E Powder, L-Cysteine Monohydrochloride, Mentha Piperita (Peppermint) Leaf Extract Powder (Solid 1.5%, Eygpt), Gardenia Yellow Color, Elastin Protein Powder (France), Low Molecular Fish Collagen, Anhydrous Citric Acid Ingredients subject to change at manufacturer's discretion
Nutritional Challenges of Incretin-Based Obesity Management Medications: Implications for Clinical Practice
B12 is found naturally in animal products such as meat, fish, eggs, milk and cheese