PSORAVAN contains extract derived from Karanj, Neem, Kampillo and Gandhak. Pongamia pinnata (KARANJ) Azadirechta indica (NEEM) Berberis aristata (Daruharidra) Sulphur (SUDDH GANDHAK) Pongamia pinnata (KARANJ) The tree is rich in flavonoids and related compounds like flavone glucosides, sterols, triterpenes. It has been used in skin diseases like psoriasis, eczema, acne etc. for many years. Azadirechta indica (NEEM) Nimbidin is a chief active element present in Neem. Since it is blood purifier, It has been used in variety of skin disease for last many years. It is also having immunopotentiating activities hence it may aggravate psoriasis in some patient for limited time.