Order Elixir Collection The Ritual of Hammam Shampoo online at Rituals.com. Order the Elixir Collection The Ritual of Hammam Shampoo. Your haircare should be unique, just like you and your hair. At The Hair Temple, choose 2 concentrated elixirs that meet your specific needs and add them to your shampoo for a luxurious and personalised experience, all with your favourite Rituals fragrance of rosemary and eucalyptus. Enriched with shikakai and argan oil, the shampoo intensely nourishes and soothes, and your chosen elixirs boost the natural beauty of your hair by giving it what it needs most. Safe for use on colour-treated hair.