Answer
Nov 10, 2025 - 05:17 PM
35% hydrogen peroxide has a relatively short shelf life, typically lasting around 6 months to a year when stored properly in a cool, dark place and in a tightly sealed, opaque container. Over time, it decomposes into water and oxygen, losing its effectiveness. It's important to regularly check its potency and replace it as needed to ensure it remains effective for your intended use.
