On She Built It®, Brynn MacLennan, product designer, mother of five, and co-founder of Slate, shares how co-managing a dental practice revealed something that couldn’t be unseen: even wealthy, educated patients weren’t flossing. Not because they didn’t care about their health, but because flossing was broken.
Brynn shares how she turned that insight into a patented 3-in-1 electric flosser now sold in 870 Target stores, what it took to hit $1M in year one, and the marketing strategies that actually moved the needle, including why dental professional influencers outperform lifestyle influencers for Slate every time. She also talks about the leadership evolution of letting go, the books that changed how she builds her team, and why she thinks founders need to talk more openly about failure. This conversation is for any founder who started with a problem no one else thought was big enough, and turned out to be right.
Connect with us:
Slate Flosser Website
Slate Flosser LinkedIn
Slate Flosser Instagram
Brynn MacLennan LinkedIn
Brynn MacLennan Instagram
The Day I Realized Oral Health Wasn’t Just About Teeth | Brynn MacLennan | TEDxSpokane
Work with She Built It® Media
She Built It® Instagram
She Built It® CEO, Melanie Barr Instagram
Melanie Barr LinkedIn
She Built It® LinkedIn
Episode resources:
OuterSignal — Know Every Customer
Claude AI
Multipliers, Revised and Updated: How the Best Leaders Make Everyone Smarter by Liz Wiseman
Who Not How: The Formula to Achieve Bigger Goals Through Accelerating Teamwork by Dan Sullivan