Perfect oral care is rare. For those who don’t, or can't, commit to perfect oral health, brush four times a day, floss twice a day, and religiously use their Waterpiks or other devices—welcome to the rest of us.
The reality? That’s 90% of the world—or as we say—the rest of us.
Why We’re Different
We didn’t just build another toothbrush.
We combined the best of Korean innovation, e-commerce expertise, and deep dental industry experience to create a category-defining product.
Korean Engineering & Product Excellence – Our co-founder, Young Wook Kim, leads our team of 20 elite South Korean engineers and product developers.
Industry Disruptors – Led by CEO Mark H. Goldstein, our team includes former Sonicare executives, top dental researchers, and digital health experts who have scaled brands to mass-market success.
Real Dental & Consumer Health Expertise – From Colgate researchers to Ivy League professors, our team has decades of experience bringing real science-backed solutions to market.
The Industry is Stuck in 1992. We’re Not.
Toothbrush technology hasn't changed in over 30 years.
We knew we could do better.
50% of people who try Great Gums feel the dentist-clean difference from the first brush.
Bioelectric microcurrents reach where other brushes can’t—no motors, no harsh vibrations, just results.
We have protectable IP and a product that works.
We also know we’re up against some of the biggest giants in oral care—Philips, P&G, and Colgate.
And that’s exactly why we’re here.
We’ve built something they didn’t. And we’re proving that consumers are ready for the next evolution in brushing.
Meet the Industry Disruptors
Mariya Filipova
Advisor
Former President, CareQuest Innovation Partners
Silvana Barros
Clinical Research
Former Colgate Director of Clinical Innovation
Dr. Luiz Pimenta
Clinical Research
Professor at Columbia University's College of Dental Medicine
Jaycee Memminger
Advisor
Dental Visionary + VP GLO Science
Women in DSO Award Finalist
Ray Larney
Advisor
Former VP of Sales and Marketing for Sonicare, a Philips Company
Erica Michel
VP E-Commerce
Experienced Digital Leader
Former Sephora & Credo Beauty
Eileen Day
Marketing Advisor
Storyteller Extraordinaire + Founder of DSO Vendor Insights Network
Dr. Nick Koogler
Dental Champion
Key Opinion Leader + Owner of Cascade Integrative Dentistry
Dr. Jeremy Ueno
Dental Champion
Key Opinion Leader, Owner of Ueno Center Dental Specialists
Dr. Ian Shuman
Dental Champion
Key Opinion Leader + Dentistry & Reconstructive Practice Owner
Dr. Barry Bartusiak
Dental Champion
Key Opinion Leader + Owner of Bartusiak Dental Care
Dr. Thomas Kang
Dental Champion
Key Opinion Leader + Owner of Puget Sound Perio
CEO + Co-Founder
Mark H. Goldstein
Mark knocked most of his front teeth out in a water ski accident twenty years ago and since then has gotten to know his dentist a bit too well and this was a decade or so after his parents invested in 5+ years of braces!
Serial entrepreneur and healthcare innovator, Mark co-founded Great Gums to bring this revolutionary technology to the global market. His experience spans fintech, SaaS, e-commerce, and health sectors.
Founder
Young Wook Kim, Ph.D.
Meet Young, the creator of Great Gums Technology and Founder & CEO of Proxi Healthcare Inc. A young biotech startup with headquarters in Seoul, South Korea.
Young developed groundbreaking micro-current electromagnetic wave technology to remove plaque, inspired by his personal health journey and professional background in biotechnology and engineering.
2025 is the year we shake up the industry.
Our mission is simple: Convert Sonicare, Oral-B, and manual toothbrush users to bioelectric brushing.
We’re focused on selling two brushes—because once people feel the difference, they want another. One for home. One for travel. One for a partner. However they switch, we’re making it easy.
The world is moving forward—so should your toothbrush.
