The Trick to Knowing Exactly When Your Makeup Expires
2. Most important: If a star ingredient featured on the product’s packaging is listed last or second to last, there’s probably not enough of it to benefit your skin.
3. Preservative (including phenoxyethanol and ingredients ending in “-paraben”) are typically used at 1 percent strength or less, says Bryan Barron, director of skincare research at Paula’s Choice Skincare. So any ingredient listed after the preservatives is likely to be present only in trace amounts.
4. Ingredients are listed from highest concentration to lowest. Generally, if you’re looking for a specific active ingredient, like antioxidant vitamin C, it should appear within the first five.
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