Cave Shake Update | Shark Tank Season 10

​In 2015, while following a keto diet to manage inflammation after a car accident, Holly Heath and her friend Billie Cavallaro found it hard to satisfy their sweet cravings without breaking their diet. To solve this, they created Cave Shake, a ready-to-drink, coconut milk-based shake that’s low in carbs and healthy fats, making it perfect for keto followers. Will the sharks drink up their product and hand over a deal? Find out in our Cave Shake update.

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

Holly and Billie entered Shark Tank Season 10, seeking $250,000 for 10% equity in their healthy diet vegan shakes. After their pitch, they secured a deal with guest shark Charles Barkley for $250,000 for 20% equity.

In terms of a Cave Shake update, the company eventually rebranded to Space Shake and launched in several retail locations. However, the website has been down for over two years and it appears the company has gone out of business.

Shark	Result
Charles Barkley	Accepted offer of $250,000 for 20% equity
Kevin O’Leary	No offer
Lori Greiner	No offer
Robert Herjavec	No offer
Mark Cuban	No offer

Shark Tank Cave Shake Pitch

• Entrepreneurs: Holly Heath and Billie Cavallaro
• Business: Healthy diet vegan shakes
• Ask: $250,000 for 10% equity
• Result: $250,000 for 20% equity
• Shark: Charles Barkley

Billie and Holly began their pitch by talking about the challenges of avoiding sugar and carbs. This immediately caught Mark Cuban’s attention.

They introduced Cave Shake as a solution, a keto-friendly, coconut milk-based shake designed for people on a low-carb, high-fat diet.

Billie and Holly explained that it could work as a snack, meal replacement, or dessert. They highlighted its energy-boosting MCTs and how it fits into a keto lifestyle.

To make the presentation more engaging, they performed a catchy theme song about Cave Shake. Then, they handed out samples to the sharks.

Most of the sharks liked the taste. However, Robert Herjavec strongly disagreed. He openly said the shakes tasted terrible.

Robert then asked about the calories. Billie said each Cave Shake had 480 calories, mostly from plant-based fats. He clarified that on a keto diet, calories mattered less than cutting carbs.

Each jar sold for $7.99 and cost $1.50 to produce. They were already selling Cave Shake in health food stores throughout Southern California.

Next, Holly shared that they made $270,000 the previous year and had already reached $182,000 in the current year. Mark told them they were off to a good start.

The conversation then shifted to their backgrounds. Billie said he played many sports growing up and turned to the keto diet to reduce inflammation from injuries.

Holly added that she joined him on the journey after struggling with chronic pain from a car accident when she was 17.

Kevin O’Leary wanted to know why they believed Cave Shake was worth $2.5 million.

In response, Billie revealed they had already partnered with Coca-Cola through an incubator program called LA Libations.

In exchange, they had given up 15% equity in their company to receive support and resources.

Mark wanted to know why they needed a shark if they already had an incubator partner. Billie said they believed in building a strong support network.

Kevin followed up with questions about the incubator agreement. He asked whether the deal involved royalties or commission fees.

Holly said that the incubator hadn’t brought in any accounts yet, so no commissions had been paid.

Kevin asked again for the exact commission percentage, but they didn’t provide a specific number.

Eventually, Kevin stepped out. He said he didn’t want to invest in a business where backend royalties might cut into profits.

Robert also dropped out. He said he found the branding confusing and didn’t like the taste of the product.

Mark went next. He believed the company was still too early-stage and would take too much effort to scale.

Lori Greiner said she liked the idea but preferred not to drink her calories, so she also passed on the deal.

At that point, only guest shark Charles Barkley remained interested. He offered $250,000 in exchange for 20% equity.

Billie tried to negotiate the equity down to 14%, but Charles stood firm.

After taking a few moments to discuss privately, Billie and Holly accepted Charles’s offer.

Did they manage to grow after Shark Tank? Keep reading our Cave Shake update to find out.

Shark Tank Cave Shake Update

Our Cave Shake update found that after the show, the company rebranded to Space Shake.

Alongside the rebrand, they introduced new flavors and cut the calorie count from 480 to about 210 per serving, shifting from a full meal replacement to a lighter snack.

The company also updated its packaging, moving from plastic bottles to portable pouches.

Our Cave Shake update found that the company expanded its retail presence, launching in Whole Foods Market, Bristol Farms, and online through Amazon and its website.

In December 2020, Billie left the company to start Nomading, a remote apartment-swap platform. Meanwhile, Holly stayed on as CEO and continued to lead Space Shake.

However, by late 2022, signs of trouble began to surface. Only one flavor (chocolate) was listed on their website, and the product was no longer available on Amazon.

Searches in retail stores came up empty, and their social media accounts had gone silent since October 2022.

The company hasn’t announced a closure at the time of this writing, but the lack of online activity and retail availability strongly suggests it may no longer be operating.

Since the site has been down for over two years, it looks like this might be our final Cave Shake update.

In the meantime, you can check out our other company updates from Season 10 Episode 4 by following the links below!

• Butter Cloth Update
• BoomBoom Inhalers Update
• Manscaped Grooming Update

For even more on companies and products, be sure to stop by our Season 10 products page!