Jack Dean American Bay Rum Hair Tonic (250 ml): The Jack Dean American Bay Rum Hair Tonic is a light lotion that stimulates and invigorates the scalp to maintain and care for healthy hair. Jack Dean Bay Rum Hair Tonic comes with an authentic, aromatic fragrance derived from a warm, spicy infusion of bay leaves and cloves mellowed with sweet orange and basil oil. For best results, Jack Dean hair tonic should be applied daily by combing through and massaging into gently into the scalp with your fingertips.