7 mukhi rudraksha removes malefic of Shani. Effect of shani/Rahu - Sudden fall in status, diseases of lungs, feet and skin, hydrocele, Diseases occurring suddenly without any cause, impotency, cold, obstruction, hopelessness, despair, delay in achievements, long time disease, scarcity, worry.
A 7 Mukhi Rudraksha is honored by Goddess MahaLaxmi. Likewise looked for after as speak to Saptrishi. A 7 Mukhi is useful for strength of procuring or even view of gaining.