L’Oréal’s Hyaluronic Acid, for Beauty from Head to Hair

By THÉRÈSE MARGOLIS It has been called the Fountain of Youth for the 21st century, and is one of the most important ingredients in modern skincare products. In fact, hyaluronic acid — which is a naturally occurring substance in the human body that can hold up to 1,000 times its weight in water — has become the gold standard for
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