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L'Oréal

L’Oréal Professionnel Keratin Alpha Sleek Mirror Sleek Serum

Regular price £19.50

A heat-activated leave-in finishing serum for all hair types seeking smoother, softer hair with controlled frizz and unwanted volume. Formulated with Keratin Sealer 5%, it creates instant shine, helps defend against humidity and provides heat protection up to 230°C.

Use after the Keratin Alpha Sleek Smooth Transformer or Hair Mask as the final step before blow-drying. When used as part of the complete routine, it supports progressively smoother hair and up to two weeks of frizz control. The formula does not contain keratin; it works with the hair’s existing keratin structure.

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