9 Sneaky Ingredients to Watch Out for in Skin Care Products

The thing about skin care is that it's extremely relative. For example, a miracle serum your best friend swears by might make you break out, or a product that everyone touts on Insta might just be meh in your experience. That said, there are some consistencies when it comes to the skin care ingredients we ought to avoid. So we asked skin care experts to share the ingredients that are particularly problematic... and what signs to look for regarding an allergic reaction.

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