Reverie CAKE Restorative Scalp Tonic. . This Product Is:. an oil based scalp treatment. Good for:. all skin types and hair types from straight and fine, coarse and curly. Why We Love It:. Reverie CAKE Restorative Scalp Tonic is a formulation of the finest botanical ingredients sustainably sourced from around the world. Cake Restorative Scalp Tonic supports the hair and scalp while promoting growth and restoration. This natural formula consists of a blend of eight essential oils, including frankincense, sandalwood, and ylang ylang, complete this intensely hydrating formula..