OKAY, WHAT’S POLYGLUTAMIC ACID?

© Provided by Refinery29 The key to ensuring your skin-care routine stays as effective as possible is making room for flexibility. Sometimes, just when you think you have a handle on what your skin likes, you get a breakout or your favourite moisturiser starts pilling. What’s helpful in those moments is having a fundamental understanding of skin-care actives to try and effectively...

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