Refrigerator interior lights that turn on each time you open the door provide minimal exposure, but if your vial sits near the front of the shelf and you open the refrigerator frequently, the cumulative light exposure over 28 days can contribute to degradation
Takeaways Bacteriostatic water contains 0.9% benzyl alcohol preservative enabling multi-dose use for up to 28 days Sterile water provides maximum purity but requires single-use within 24-48 hours after opening Cell culture applications typically require sterile water due to benzyl alcohol cytotoxicity concerns Choice depends on experimental timeline, peptide sensitivity, and whether preservatives interfere with assays What is Bacteriostatic Water for Peptides
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If you arent able to get enough from your diet or have trouble absorbing enough from the food you consume, you might suffer from B-12 deficiency