Ozzy Osbourne is donating 10 percent of the profits from sales of his tour merchandise to The Michael J. Fox Foundation For Parkinson’s Research. The organization is dedicated to finding a cure for Parkinson’s disease as well as developing improved therapies for those living with the disease.

A message on Ozzy’s Twitter feed read, “Past tours exclusive merch last bits of remaining stock available until sold out! April is #ParkinsonsAwarenessMonth so 10 per cent of ALL sales going directly to the @MichaelJFoxOrg for #Parkinsons research.”

Various pieces of apparel, tour books, posters, and other accessories are among the items on Ozzy’s offer.

Ozzy revealed earlier this year that he was suffering from a form of Parkinson’s disease. He said that he was diagnosed 15 years ago with Parkin syndrome, a genetic condition which has symptoms similar to that of Parkinson’s disease.

He was scheduled to travel this month for radical treatment in Switzerland to deal with his neurological condition. But travel restrictions related to the coronavirus pandemic forced Ozzy to call off the trip for now.