BENTON Honest Scalp Nourishing Tonic Ampoule revitalizes scalp and hair with amino acids, beer yeast extract, and caffeine for enhanced strength and vitality. Revitalize your scalp and hair with the BENTON Honest Scalp Nourishing Tonic Ampoule. This all-in-one hair tonic is formulated with 17 types of amino acids, beer yeast extract, and caffeine to provide rich moisture and nourishment to both hair and roots. The inclusion of Houttuynia Cordata Extract and Perilla Frutescens Leaf Extract helps to soothe and balance the scalp, promoting a healthy environment for hair growth. With regular use, this tonic ampoule strengthens tresses, leaving them looking fuller and more vibrant.