Kérastase Discipline Oléo-Relax Advanced Hair Oil 100ml is a lightweight, leave-in treatment designed to smooth and nourish unruly, frizzy hair. Enriched with Shorea butter, Coconut oil, and Rosa Canina fruit oil, this formula deeply hydrates, enhances softness, and provides up to 230°C heat protection. Its Morpho-Huile Complex delivers 24-hour manageability, even in 80% humidity, ensuring sleek, disciplined hair throughout the day. Ideal for medium to thick hair types, it tames volume and adds shine without weighing hair down. Apply 1–2 pumps to towel-dried or dry hair, focusing on mid-lengths and ends, for optimal results. ​