SidrSidr is the powdered leaves from the Zizyphus Spina Christi tree. It has a long history being used as a treatment for hair, beard (even the face) by mixing a porridge and using it as hair mask, hair tonic as well as shampoo. Directions: Mix powder with water or herbal tea in a small pot on the stove, and apply gentle heat. Stir until the mixture has the texture of a light paste porridge. Let the mixture cool, add a few drops of lemon or vinegar and