a nourishing and rich shampoo typically contains ingredients that provide hydration, moisture, and nourishment to the hair and scalp. These shampoos often have a creamy or luxurious texture and are formulated with ingredients like oils, butters, vitamins, and proteins to help replenish and revitalize the hair. To use a shampoo like Laura Sims Shampoo Nourrissant Ultra Riche, it is typically applied to wet hair. The shampoo is usually massaged into the scalp and worked through the hair, creating a lather. It is recommended to thoroughly rinse the shampoo out of the hair, ensuring that no residue is left behind.