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The Preservative in Your Moisturizer That's Acting Like Estrogen in Your Body

There's a preservative in nearly every moisturizer on the market. It's been linked to hormone disruption, detected in breast tumor tissue, and found in cord blood of newborns. Here's what parabens ...

The Ingredient Your Skin Recognizes as Its Own (And Why It Vanished for 100 Years)

There's a fat that matches your skin's own chemistry so closely that, on a molecular level, your cells can barely tell the difference between it and something they made themselves. It's not a paten...