There are different varieties and benefits of Horsetail. It is a very effective plant to combat fluid retention, in particular the species Equisetum arvense L. The effectiveness of this medicinal plant is due to its great richness in flavonoids, saponosides and potassium. flavonoids, saponosides and potassium. which contribute to an increase in urine elimination. It is estimated that with regular consumption of this food supplement the following can be achieved eliminating an average of 30 % more fluids through urine. You have it available in different ways, for example in Robis we have it as one of the ingredients of our Drena Robis infusion based on Horsetail.