Bacteriostatic water is the only correct choice for a 30 mg vial that you will draw from multiple times over weeks
They are addressing a root cause
Individuals with B12 deficiency, which can occur due to dietary restrictions (e.g., vegan or vegetarian diets), gastrointestinal disorders affecting absorption, older age, or certain medical conditions that interfere with B12 absorption
There is a theoretical --- though as yet unproven in humans --- risk that long-term or high-dose use could stimulate growth in existing malignant or pre-malignant cells
Compounds reconstituted in BAC water last 2 to 4 weeks at 2 to 8C
Understanding whether peptides expire requires examining the complex interplay between amino acid sequences, moisture content, and thermal energy