The Big Move · 2026-02-24 · 46 min
Shamini Rajarethnam is the CEO of RATIONALE, the cult Australian luxury skincare house known for its science-first formulations and luminous-skin rituals. She joined RATIONALE in 2011 and became CEO in 2017, leading its transformation from a dermatology-aligned business into a modern luxury skincare brand with expansion into the US. Shamini holds a BA in Linguistics and a Master of Commerce, and is based in Melbourne with her young family. As both a mom of 3 and CEO, she speaks with us on balancing ambition and purpose, combatting imposter syndrome, showing up with a calm resiliency in both life/motherhood, and championing women (especially mothers) in business. Follow Rationale here Shop Rationale Skincare here Follow Shamini on Instagram
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