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    10 Tricks to Know when to Toss Your Makeup

    As we embrace more natural skincare products, we're also saying goodbye to a lot of the preservatives that help extend the shelf-lives of our creams and serums. So now we face the question: How long, exactly, before these products start to go bad and should be tossed?

    Aside from sunscreen, cosmetics and skincare products aren't required to put an expiration date on their packaging, which is why it's important that consumers learn the various tricks to know when it's time to throw a product away and get a new one.

    Here, we've compiled 10 key tips to keep in mind as you're evaluating your makeup cabinet, mined from sources as varied as our own reporting and The New York Times.

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    1. Photo by: StyleCaster
      It's not just the beauty product itself that is at risk of expiring - it's the individual ingredient within the product. For example, the benzoyl peroxide in an acne gel expires three months after being opened, so that ingredient becomes inactive and is no longer able to do its job. Other popular ingredients like vitamin C, antioxidants, glycolic acids and retinols break down when exposed to sunlight and heat.
      Photo by: StyleCaster
      It's not just the beauty product itself that is at risk of expiring - it's the individual ingredient within the product. For example, the benzoyl peroxide in an acne gel expires three months after being opened, so that ingredient becomes inactive and is no longer able to do its job. Other popular ingredients like vitamin C, antioxidants, glycolic acids and retinols break down when exposed to sunlight and heat.

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