The Wella Professionals Ultimate Smooth Miracle Oil Hair Serum is a 30ml bottle of luxurious hair serum designed for women. It is formulated with oil, making it suitable for all hair types, especially coarse, wavy, and unruly hair. The serum contains sun protection and is vegan-friendly, providing a smoothing effect on the hair to leave it looking sleek and shiny. With a period after opening of 12 months, this product is a must-have for anyone looking to achieve salon-quality results at home.