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L'Oréal Professionnel Keratin Alpha Sleek Mirror Sleek Serum

A professional heat-activated smoothing serum formulated with 5% Keratin Sealer to deliver long-lasting smoothness, frizz control, and a sleek, glossy finish.

Its advanced formula helps seal the hair's keratin structure, providing smoothness and volume control for up to 10 washes. Designed to resist humidity levels up to 80%, it protects hair against heat up to 230°C (450°F) while helping reduce daily styling time by half.

When used as part of the complete Keratin Alpha Sleek routine, it helps maintain smooth, frizz-controlled hair for up to 2 weeks.

Formulated without artificial colorants or alcohol. Does not contain animal-derived keratin.


Key Benefits

  • Long-Lasting Smoothness: Helps maintain sleek, smooth hair for up to 10 washes.

  • Frizz Control: Reduces frizz and helps keep hair smooth and manageable.

  • Volume Control: Controls excessive volume for a polished, sleek finish.

  • Anti-Humidity Protection: Helps resist frizz in humidity levels up to 80%.

  • Heat Protection: Protects hair against styling heat up to 230°C (450°F).

  • Faster Styling: Helps reduce daily styling time by up to 50%.

  • Enhanced Shine: Leaves hair looking glossy, silky, and radiant.

  • Heat-Activated Formula: Works with heat styling tools to deliver longer-lasting smoothing results.

Key Ingredients

  • 5% Keratin Sealer: Helps seal and smooth the hair's keratin structure for long-lasting frizz and volume control.


How to Use

  1. Shake well before use.

  2. Apply to clean, towel-dried hair.

  3. Detangle and divide hair into 2 sections.

  4. Spray the serum into your palms:

    • Fine to medium hair: 2–4 sprays.

    • Thick hair: 6–8 sprays.

  5. Rub hands together and distribute evenly through the mid-lengths and ends.

  6. Do not rinse.

  7. Blow-dry thoroughly to activate the formula.

  8. For longer-lasting smoothness, finish with a straightening iron.

Pro Tip: For optimal results, use as part of the complete L'Oréal Professionnel Keratin Alpha Sleek routine.


Results

  • Smooth, sleek hair for up to 10 washes.

  • Long-lasting frizz and volume control.

  • Protection against humidity up to 80%.

  • Heat protection up to 230°C (450°F).

  • Daily styling in up to half the time.

  • Up to 2 weeks of smooth, frizz-controlled hair with the complete routine.

$ 30.00 $ 30.00
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Shipping: 2-3 Business Days