L'Oreal Professionnel Serie Expert Keratin Alpha Sleek Hair Mask 250ml

L'Oreal Professionnel Serie Expert Keratin Alpha Sleek Hair Mask (250ml) is a professional smoothing treatment designed to deeply nourish, hydrate and condition frizz-prone hair while helping reshape and smooth the hair's keratin structure. The rich, sensorial formula works to improve manageability and softness while supporting smoother, more controlled styling. With continued use as part of the Alpha Sleek routine, it helps reprogram hair for up to 2 weeks of frizz control¹.

Formulated to tame unwanted volume and smooth the hair fibre, the mask helps deliver up to 5x smoother hair and 2x less frizz² while supporting faster daily styling. The intensive conditioning treatment helps provide up to 3x less unwanted volume while protecting the hair fibre from breakage and improving softness from the first use. It also enhances shine, delivering glossy results that can last up to 5 days.

Key Benefits:

• Helps reprogram hair for up to 2 weeks of frizz control¹.
• Up to 5x smoother hair and 2x less frizz².
• Helps control unwanted volume for easier styling.
• Supports styling routines that take half the time³.
• Provides up to 3x less unwanted volume.
• Helps protect hair from breakage and improve softness from the first use.
• Adds instant shine that can last up to 5 days.

Claims:

• ¹Consumer test on 68 participants, 1 application per week for 4 weeks. Based on 15-day break observation.
• ²Instrumental test after 4 uses of Smooth Transformer.
• ³Instrumental test after 4 uses of the Shampoo + Smooth Transformer + Serum routine.
• Instrumental test.
• Instrumental test after 1 application of shampoo, mask and serum.

Directions of use:

• Apply evenly from lengths to tips after shampooing.
• Leave on for 5 minutes.
• Rinse thoroughly.
• Use once a week alongside Smooth Transformer for long-lasting smoothing results.
• On other wash days, use this mask to maintain moisture and smoothness.