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How should I store the serums and how long do they last?Updated a month ago

Storage: Keep bottles upright in a cool, dry place away from sunlight. Heat and light accelerate oxidation of vitamin C. Ensure the cap is tightly sealed.

Shelf life: Unopened bottles remain stable for up to 18 months. Once opened, we recommend using each serum within 6–12 months for optimal potency. Our biophotonic glass bottles help protect the formulas from light and oxidation, preserving their integrity longer than standard packaging. With daily use, a Prevention + Treatment duo typically lasts about 30 days.

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