GRO+ Advanced Hair Serum with CBD calms & soothes the scalp while reducing the signs of thinning for thicker, fuller, longer looking hair. Formulated with our proprietary blend of clinically tested plant-based phytoactives proven to increase hair density by up to 51% and reduce shedding by up to 76%, GRO+ Advanced Hair Serum deeply penetrates to help soothe the scalp and revitalize the hair roots to support thicker, fuller, longer looking hair.