When To Use a Key Opinion Leader (KOL) vs. An Influencer

When I started writing this blog post on KOLs and influencers in marketing, I immediately thought of doctors and dentists. Do you remember those TV commercials for toothpaste that featured a wise-looking grandfatherly man in a white coat smiling at you with his shiny teeth and explaining how only Colgate reduces your plaque by up to 98%? Whether or not the dentist influenced my buying decision, I never questioned his assertions because of his expertise -- he must know what he was talking about because he was a dentist.

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