Yes, of course, because if it is high, then your risk of heart disease is increased. So what needs to be done, if you want to bring your cholesterol down? 
Go to your doctor! So you go and what do you get? A cholesterol lowering pill, of course. Are you happy now? Yes! Because the only thing you need to do now is to take pills. Simple? Yes!
But simple does not mean, that it is good for you, because as you know, cholesterol lowering drugs have multiple side effects, including, but not limited to, muscle and liver problems, etc. Do you want the problems with your liver? Or course not. But you still want your cholesterol down? So what is the solution?
Here is the list of the most important supplements to bring your cholesterol down:
 Fish oil
 Niacin
 Vitamin C
 B complex
 Fibers ( soluble )
 Folic acid
So on one side is cheap over the counter supplements, on another side is FDA approved prescription medication, endorsed by multiple controlled studies. Which is more effective? Guess what? Fish oil ( supplement)! This was confirmed by recent CORONA study from Italy ( chair Dr Luigi Tavazzi ) where they compared omega 3 fatty acid pill, derived from fish oil, with prescription medication Crestor. Omega 3 9 fish oil ) won! So what are you going to take?