L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum - 50ml

The Mirror Sleek Serum by L’Oréal Professionnel is the ultimate finishing step for achieving permanently smooth, frizz-free hair with an intense, mirror-like shine. Expertly developed to support professional sleek styles, this high-performance formula helps maintain flawless results - even in challenging humidity.

Formulated with 5% Keratin Sealer Complex, the serum works to seal the hair’s keratin structure, creating a smooth, polished surface while reinforcing the fiber from within. Its highly concentrated formula delivers advanced frizz and volume control for up to 10 washes, ensuring long-lasting manageability and sleek definition.

Designed for modern styling needs, the serum also provides heat protection up to 230°C and shields hair against up to 80% humidity, helping preserve your style in damp conditions. The hair fiber appears visibly smoother, softer, and more refined, with enhanced shine and improved control.

When used as part of the complete Keratin Alpha Sleek routine, the Mirror Sleek Serum delivers up to two weeks of maximum frizz control with minimal styling effort. Consumer tests show that daily styling time can be reduced by up to 50%, making it ideal for those seeking professional anti-frizz performance, heat protection, and long-lasting smoothness in one powerful finishing product.

Key Benefits:

• Seals hair structure with 5% Keratin Sealer Complex
• Controls frizz and volume for up to 10 washes
• Provides heat protection up to 230°C
• Protects against up to 80% humidity
• Delivers mirror-like shine and enhanced manageability
• Reduces daily styling time
  

Ideal For:

• Frizz-prone or humidity-sensitive hair
• Sleek, straight styling looks
• Long-lasting smooth finishes
• Heat-styled hair in need of protection