Digital Planet

Sep 25, 2026 · Industry Insights

KOS: The Brand's Lever for Deep Circle Cultivation in Omni-Channel Marketing

This article defines KOL, KOC, and KOS roles, argues that KOS—brand-recruited salespeople like counter beauty advisors—are the actionable layer for circle-based marketing, citing Wuliangye's 3K system and L'Oreal's BA transformation as proof.