SORx Muscle Soap Update | Shark Tank Season 15

Many people struggle with sore muscles but don’t have an easy way to treat them at home. David Restiano and Dr. Dan Staats developed SORx, an all-natural soap shaped like a muscle-scraping tool that physical therapists use. It helps improve soft tissue health while giving a cooling, refreshing feel after workouts. Will they convince a shark to come on board with an investment? Find out in our SORx update and pitch recap.

If you’re short on time, here’s a quick overview of what happened to SORx after Shark Tank.

David and Dr. Dan pitched their soap products on Shark Tank Season 15, seeking $100,000 for 10% equity. Ultimately, they got a deal with Mark Cuban for $100,000 for 20% equity.

In terms of a SORx update, the company doubled its sales within two weeks of airing and published clinical trial results showing improved muscle performance in deli workers. Further, SORx has since expanded its product line, added new accessories.

Shark:	Result:
Mark Cuban	Accepted offer for $100,000 for 20% equity
Kevin O’Leary	No offer
Lori Greiner	No offer
Robert Herjavec	No offer
Barbara Corcoran	No offer

Shark Tank SORx Pitch

• Entrepreneurs: David Restiano, Dr. Dan Staats
• Business: Muscle soap
• Ask: $100,000 for 10% equity
• Result: $100,000 for 20% equity
• Shark: Mark Cuban

David and Dr. Dan entered the Tank to pitch SORx, a muscle relief product line for home use.

Their main product, SORx Soap, is an all-natural bar shaped like a muscle-scraping tool used by physical therapists.

It contains lavender and chamomile for relaxation and menthol for a cooling effect.

They said using the concave side of the soap in the shower for 20–30 strokes at a 15% angle can improve soft tissue health, help recovery, and leave users feeling refreshed after workouts or long days.

As they explained how it worked, the sharks tried the soap. They agreed it felt good and smelled great.

Barbara Corcoran asked why the therapy worked. Dr. Dan said it encouraged tissue regeneration.

In addition to the SORx Soap, they also have a polycarbonate tool called the SORx Tool Pro. It looks just like the soap and can be used outside the shower.

Barbara asked about their backgrounds. Dr. Dan said he had been an athlete his entire life, earned a biology degree, and later a doctorate in physical therapy before opening his own practice.

David was one of his patients, later a friend, and eventually his business partner. He brought his experience as a longtime graphic designer to the company.

They have been in business for two years, with year-to-date sales of $125,000. Of that, $70,000 came in the quarter before filming.

They sell two bars and a holder for $23 retail, with a production cost of $8.52. Wholesale sales to gyms and physical therapy offices range from $15 to $17.

Kevin O’Leary dropped out first, saying he was already in the soap business with Blueland.

Barbara said the soap market was too competitive and the product would be a hard sell, so she went out.

Robert Herjavec said he liked the product but wanted something with broader appeal. He also exited but said he would still be a customer.

Lori Greiner agreed, saying she liked it but not enough to invest. She also planned to buy the product.

Mark Cuban talked about his own neck pain and said using the soap during the pitch helped relieve it.

He proceeded to offer $100,000 for 20% equity. Dr. Dan countered with $100,000 for 15% equity and lifetime free physical therapy consults, but Mark declined the consults and stuck to 20% equity.

The guys took a second to discuss the offer and finally accepted it before Mark could change his mind about investing.

Keep reading our SORx update to find out what happened next.

Shark Tank SORx Update

We have some great news for our SORx update. The deal with Mark Cuban eventually came to fruition after the show, and both founders have since confirmed that Cuban is an active partner in the business.

However, in April 2024, the month their episode aired, SORx saw immediate traction. Within just two weeks, sales had doubled, and by the end of that first month, they had locked in consistent growth.

The company also gained attention for running a 30-day clinical trial on deli workers, which showed measurable improvement in muscle performance.

Those findings were published, giving their product scientific credibility right after the exposure from the show.

Following the initial spike, SORx expanded its product line and sales channels. Their website now features several products beyond the original muscle-scraping soap bar.

These include the SORTOOL Pro, a portable scraping tool made from durable plastic, a soap-saving sisal bag for exfoliation and storage, and a suction-cup holder for showers.

They also offer a vented protective case called the SORxCASE and multi-packs, including a six-pack subscription option labeled their “best deal” (often sold out).

Social media posts since late 2024 show teasers about getting into gyms, pro shops, surf shops, and boutiques in New Jersey, as well as promotions like “HERO20,” which offered a discount while donating to the LA Fire Department.

They’ve also built a content mix of recovery tips, behind-the-scenes product development, and customer testimonials to keep their audience engaged.

David has often shared in interviews and podcasts how TikTok played a role in catching Shark Tank’s attention, and how Mark Cuban’s advice to “build a community, not just chase sales” reshaped his strategy.

You can purchase your muscle-scraping recovery soap directly from their website. Follow their journey and check out new releases on Instagram.

It’s a great thing David and Dan have been able to build thus far. We’ll definitely keep an eye on their progress and report it in our next SORx update.

In the meantime, you can follow the links below to check out our other company updates from Season 15, Episode 20!

• Blinger Update
• Wedy Update
• VSEAT Update

Before you go, be sure to check out our list of all the Shark Tank Season 15 products.