Tentex Royal corrects erectile dysfunction by increasing the penile blood flow.  A blend of various pure herbs and natural ingredients are combined to create this remarkable product. Action Tentex Royal Tentex Royal corrects erectile dysfunction by relaxation of the cavernosal muscles resulting in increase in penile blood flow. Indication 1. Erectile dysfunction.Composition Each Tentex Royal capsule contains: Pdrs. Kokilaksha (Asteracantha longifolia) 145mg Vathada (Prunus amygdalus) 126mg Sunishannaka (Blepharis edulis) 115mg Kumkuma (Crocus sativus) 14mg Exts. Gokshura (Tribulus terrestris) 100mg