INTERVIEW | Make Money by Reinventing a Boring Industry, feat. Brynn MacLennan
Brynn MacLennan is a serial entrepreneur and product designer who’s been building businesses since she was just 13 years old. With a background in product design and experience working alongside the dental industry, Brynn co-founded an innovative electric flosser designed to make oral care easier, more effective, and actually enjoyable. Her journey spans everything from launching a bounce house company as a teenager to buying and scaling a dental practice—and now disrupting a legacy industry with a modern, dentist-backed product.
On this episode we talk about:
- Why most people floss incorrectly—and how that impacts dental health
- The process of designing and manufacturing a physical product from scratch
- Buying, scaling, and selling a dental practice
- The realities of launching via Kickstarter (and what she’d do differently)
- Building a multi-channel business across DTC, Amazon, and retail (including Target)
Top 3 Takeaways
- Making a “boring” habit easier (like flossing) can unlock massive business opportunities—simplicity drives adoption.
- Big companies and internships can provide invaluable systems and process knowledge before starting your own business.
- Distribution is everything—success in DTC, Amazon, or retail each comes with unique challenges, and none are “set it and forget it.”
Notable Quotes
- "If we made flossing easy and effective, people wouldn’t hate going to the dentist."
- "I know how to build a million-dollar company—but building a hundred-million-dollar company is a different game."
- "Entrepreneurship is constant ups and downs—just when you feel on top, something changes."
Connect with Brynn MacLennan:
- LinkedIn: Brynn MacLennan
- Instagram: https://www.instagram.com/slateflosser
- TikTok: https://www.tiktok.com/@slateflosser
- Other: https://slateflosser.com
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