L'Oréal Professionnel Keratin Alpha Sleek Mirror Sleek Serum 50ml is a professional heat-activated smoothing serum designed to deliver long-lasting smoothness, frizz control and mirror-like shine for all hair types. Formulated with 5% Keratin Sealer Technology, it helps seal the hair's keratin structure, reducing frizz and unwanted volume while leaving hair silky, sleek and easier to style.
When used as part of the complete Keratin Alpha Sleek routine, this advanced serum helps provide up to 2 weeks of smooth, frizz-controlled hair, controls frizz and volume for up to 10 washes, offers anti-humidity protection up to 80% humidity, and provides heat protection up to 230°C (450°F). The lightweight, alcohol-free formula delivers instant shine without weighing hair down, making it suitable for all hair types.
Key Features
- Professional heat-activated smoothing serum
- Formulated with 5% Keratin Sealer Technology
- Helps smooth hair for up to 10 washes
- Controls frizz and unwanted volume
- Provides up to 2 weeks of smoothness when used as the complete routine
- Anti-humidity protection up to 80% humidity
- Heat protection up to 230°C (450°F)
- Delivers instant mirror-like shine
- Alcohol-free formula
- Suitable for all hair types
- Speeds up daily styling and improves manageability
How to Use
- Shake well before use.
- Apply to clean, towel-dried hair.
- Spray 2–4 pumps into your hands for fine to medium hair or 6–8 pumps for thick hair.
- Distribute evenly through the mid-lengths and ends.
- Do not rinse.
- Blow-dry to activate the technology.
- For longer-lasting sleek results, finish with a straightening iron if desired