Harpasul Forte Single-dose 20 drinkable vials is a plant-based food supplement that, thanks to its combination of Harpagofito, Ortosifón and Sauce, helps maintain joint mobility and flexibility. The combined daily intake, for 2 or 3 months, of secondary tuber of Harpagofito (Harpagophytum procumbens (Burch.) DC) and willow bark (Salix alba L.), helps to preserve joint flexibility and maintain joint mobility. How to use: Take one vial a day, preferably with meals.