Kerastase Nutritive Masque Oléo-Relax Condition: New, Unused Volume: 500ml Large, professional size, so you can use it generously. Available for immediate purchase. Product Description: A treatment that gives hair shine and smoothness. The plant-based ingredient Nutri-Huile provides and retains moisture in the hair. It softens and smooths unruly, coarse hair, making it manageable and easy to style.