Beauty
L’Oreal Fights California Startup Over Secret to Protecting Hair
- Olaplex, born in garage, says French giant stole its ‘jewel’
- Patent battle is over system to shield hair from bleach
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L’Oreal SA made its name with an innovative hair-dyeing technology more than a century ago. Now the world’s largest beauty company is facing off in federal court against a California startup with pioneer claims of its own.