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New [Keratin Alpha Sleek] Mirror Sleek Serum for long-lasting smoothness, frizz & volume control.
Description
Keratin Alpha Sleek Mirror Sleek Serum by L'Oréal Professionnel, formulated with Keratin Sealer 5%. It seals the hair's keratin structure for long-lasting smoothness, frizz & volume control.
This Mirror Sleek Serum is heat-activated, delivering instant shine that lasts up to 5 days1. The serum helps fight against up to 80% humidity2, whilst offering heat protection up to 230°C (450°F)3.
1Instrumental test after 1 application of shampoo, mask & serum. 2Instrumental tests, with full routine after 4 uses of the Smooth Transformer. 3Instrumental tests.
Results & Benefits
- Reprogram hair for up to 2 weeks of frizz control1.
- Up to 5x smoother hair and 2x less frizz2.
- Controls unwanted volume for daily styling in half the time2.
- Adds softness and instant shine that lasts up to 5 days3.
1Consumer test on 68 participants, 1 application/week for 4 weeks. Based on 15-day break observation. 2Instrumental tests with 4 uses of the Shampoo + Smooth Transformer + Serum routine. 3Instrumental test after 1 application of shampoo, mask & serum.
Instruction of use
Ingredients
The Keratin Alpha Sleek range has a fresh, powdery, floral composition. It features top notes of cardamone, ginger, rice powder and fig leaves tree, middle notes of heart of orris, rice powder and violet, and the base notes of sandalwood and vetiver, giving rise to a fragrance that is sophisticated and premium.
For more information, please refer to our group website: Inside our products.
This ingredients list is subject to change and depends on country location selling. Consumers should refer to the product packaging for the most relevant ingredients list. In case of problem, please contact the consumer care center.

















