L’Oréal Professionnel Serie Expert Keratin Alpha Sleek Mask 500ml

• Reprogram hair for up to 2 weeks of frizz control¹
• Reduces visible frizz after one use & provide to 3x less unwanted volume ²
• Instant shine that lasts up to 5 days³ and helps to protect hair from breakage, improving softness from the first use³
• The fragrance is Fig Leaf, Creamy Sandalwood, Orris and violet

¹Consumer test on 68 participants, 1 application/week for 4 weeks. Based on a 15-day break observation.

²Instrumental test.

³Instrumental test after 1 application of shampoo, mask & serum.

Discover smoother, stronger, and more manageable hair with L’Oréal Professionnel Keratin Alpha Sleek Mask — an intensive smoothing treatment designed to tame frizz and restore control to unruly hair.

Formulated with advanced Keratin technology, this professional-quality mask helps reinforce the hair fibre while delivering deep nourishment from root to tip. It works to smooth the cuticle layer, reducing flyaways and protecting against humidity, leaving hair visibly sleeker and more polished. Ideal for thick, coarse, or frizz-prone hair, the rich, creamy texture penetrates deeply without weighing hair down.

After just one use, hair feels softer, silkier, and significantly easier to style. With continued use, the formula helps improve manageability and enhances shine, creating a smooth, salon-finish look that lasts. Whether you’re blow-drying straight or embracing a controlled, glossy style, this mask supports long-lasting smoothness and improved texture.

Perfect as a weekly intensive treatment or as part of your regular smoothing routine, L’Oréal Professionnel Keratin Alpha Sleek Mask transforms dry, resistant hair into smooth, touchable soft lengths with professional results you can see and feel.

Achieve sleek perfection and long-lasting control — every wash day.