We've all seen infomercial products filling the airwaves during the late night hours and weekend days when there is nothing else to watch. While most are compelling in their own way, some managed to hook us more than others — no matter how unnecessary or laughable the product might seem.

From skincare systems to kitchen gadgets to workout routines, some products have spurred millions of people to pull out their credit cards and pick up the phone. Click through to see the "As Seen on TV" products that are the most lucrative of all time.