Scrub Daddy

Scrub Daddy is a smiling, round scrubbing sponge made from a special FlexTexture foam that changes feel with water temperature, firm in cold water for scouring and soft in warm water for gentler cleaning. It was invented by Aaron Krause of the Philadelphia area, who had earlier built and sold a car-buffing business and rediscovered the foam material as a dish and surface scrubber that resisted odors and rinsed clean.

Krause appeared in Season 4 asking for 100,000 dollars for 10 percent. His live demo, scrubbing dishes and showing how the texture shifted with temperature, electrified the room and set off a bidding situation among the sharks. Lori Greiner won the deal at 200,000 dollars for 20 percent, immediately recognizing it as a perfect fit for her retail and QVC playbook.

Scrub Daddy stood out because the demo proved the product instantly and the smiley-face shape made it instantly recognizable, with the mouth doubling as a grip and a spot to clean utensils. Pairing a genuinely useful design with Lori's mastery of as-seen-on-TV retail turned a simple sponge into one of the most recognizable Shark Tank products ever.

The response was immediate. When the episode aired, Scrub Daddy quickly sold out a large run of sponges on QVC, and the brand rode that momentum into mass retail. Over the following years it expanded into a wide family of cleaning products and became a fixture on store shelves nationwide, frequently cited as the most successful product in Shark Tank history.

As of 2026 Scrub Daddy is still operating and remains a major cleaning-products brand with Aaron Krause leading it and a lineup that has grown well past the original sponge. Reporting consistently describes the company among the top Shark Tank successes by lifetime sales, with continued availability across major retailers.