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    Yes, vitamin C serum does expire. Like many skincare products, vitamin C serums have a shelf life due to their active ingredients and formulation. Over time, exposure to air, light, and temperature fluctuations can degrade the potency of vitamin C, leading to reduced effectiveness. Most vitamin C serums have an expiration date printed on the packaging, typically ranging from 6 months to 2 years after opening. It’s crucial to check the expiration date and follow the manufacturer’s recommendations for storage and usage.

    To maximize the shelf life of your vitamin C serum, store it in a cool, dark place away from direct sunlight and heat sources. Keep the bottle tightly closed when not in use to minimize exposure to air. Additionally, avoid contaminating the serum by using clean hands or a dropper to dispense the product. Using an expired vitamin C serum may not only be less effective but could also cause skin irritation or adverse reactions due to the breakdown of the active ingredients.

    If your vitamin C serum has expired or shows signs of degradation such as a change in color, texture, or smell, it’s best to discard it and replace it with a fresh bottle. Using an expired skincare product can compromise its efficacy and may not deliver the desired benefits for your skin. Regularly checking the expiration date and storing your skincare products properly can help ensure optimal results and safety.

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