Platforms change, trends come and go. Brand fundamentals must remain. That's the opinion of this week's guest, Kathryn Swallow - former worldwide head of Unilever's deodorants category, previously the global VP for Rexona (Sure) and Dove. Among all of Unilever's brands, the deodorant category stands out thanks to the global success of those brands as well as Lynx (Axe), and their success is owed in part, Kathryn says, to a deep understanding and respect for a brand's positioning, purpose and and proposition.

In this, we ask how brands can stay true to their core - and communicate that - among fast-moving tech, endless data, modernising audiences and, of course, social media. And we find out how Unilever's deodorant brands approach the above to ensure they don't just stay relevant, but are revered.

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