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A new curl-styling agent from Croda, MiruStyle CP (INCI: polyquaternium-72), is specially designed to put the “spring factor” into curls. According to the company, the product holds high energy, frizz-free styles longer. In tests, the quaternary-modified cellulose derivative outperformed other commonly used styling ingredients in terms of curl retention, curl flexibility and frizz control. Further sensory evaluations found that it provided a non-crispy, touchable hold without dulling or flaking. The product is recommended for leave-on styling products and conditioning rinses. In performance evaluations, the ingredient was shown to maintain 84% curl memory after a series of 50 controlled extensions.