Lait Substantif is a light replumping rinse out conditioner. Enriched with collagen this conditioner helps to replump and contour the hair fibre without weighing it down. Hair is left nourished revitalised and thickened. Scalp is left moisturised and balanced. Light Conditioner Combined with Collagen and Pro-Supplenium Plumps hair Enhances body Reinforces hair fibre Product Options Available are as follows: Size : 34 oz - Kerastase Age Premium - Lait Substantif; Size : 6.8 oz - Kerastase Age Premium - Lait Substantif;