Wella Professionals’ calming hair serum helps to moisturise and comfort your scalp. Designed to be used on dry or easily aggravated scalps, the serum delivers soothing goodness thanks to its Vegetable Glycerine content. Not only will your scalp feel calmer, but your hair will appear just as voluminous as it usually does. Dermatologically tested. 98% natural origin ingredients. Free of animal-derived ingredients. Designed without silicones. Recyclable bottle made from 100% recycled plastic.