Shark Tank Update: How Marz Sprays Survived After Near Drowning

“Shark Tank” co-star and investor Lori Greiner has built a consumer-products empire with an extraordinary sixth sense that’s able to tell whether a product will be a hero or a zero. So when the “Queen of QVC” with more than 400 inventions and 200 patents bit on Marz Sprays in season four of ABC’s hit reality show, it was an omen the company would enjoy a flood of sales.