Afro Naturel Crazy Pouss White Tonic Lotion With Castor Oil 250 ml The Tonic Lotion with Castor Oil is a real treatment for weakened and brittle hair. Formulated with castor oil, the tonic lotion stimulates the scalp, strengthens and promotes hair growth and slows hair loss. Hair regains strength, vitality and shine. Non-greasy formula. Spray the tonic lotion on your scalp and massage in circular movements to promote penetration of the product. Also apply the lotion to the lengths of the hair then comb to distribute the treatment well and let dry.