Lincoln Park's XO Marshmallow has been in business nine years and uses TikTok as a way to reach more customers and sell more marshmallows. The owners say the strategy has paid off in spades.

Shanks co-owns colorful specialty marshmallow brand XO Marshmallow, which makes over seven figures on TikTok Shop alone. That Chicago-based business was among the many that contributed to TikTok ...