AU REVOIR UNWANTED RED
Say bonjour to the coolest service by L’Oréal Professionnel Paris: Back To Cool, the neutralization service that balances unwanted warm tones through a deep understanding of color theory, base colors, undertones and reflects.
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Natural hair tones from 4 – 1 have red undertones. To counteract the unwanted red tones, use a base color with matte (.7) reflects.