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L'Oréal Professionnel Keratin Alpha Sleek Leave In Hair Serum for Anti-Frizz & Brightening 50ml
Hair Serums

L'Oréal Professionnel Keratin Alpha Sleek Leave In Hair Serum for Anti-Frizz & Brightening 50ml

L'Oréal Professionnel Keratin Alpha Sleek Serum 50ml is a professional leave-in serum, with a formula containing 5% Keratin Sealer, ideal for all hair types with frizz and unruly volume. It guarantees...

L'Oréal Professionnel Keratin Alpha Sleek Serum 50ml is a professional leave-in serum, with a formula containing 5% Keratin Sealer, ideal for all hair types with frizz and unruly volume. It guarantees long-lasting smoothness, "mirror" shine, and heat protection up to 230°C for thermal styling routines.

This serum seals the hair’s keratin structure to control...

See full description See full description
  • Hair Type Normal
  • Professional

  • Enriched with

    Keratin

    Reconstructs and strengthens the hair by filling in damaged areas and reducing breakage.

  • Application Method

    Leave In

    Hair product that you apply and leave in without rinsing out.
  • See all
Product report

Description

Description

L'Oréal Professionnel Keratin Alpha Sleek Serum 50ml is a professional leave-in serum, with a formula containing 5% Keratin Sealer, ideal for all hair types with frizz and unruly volume. It guarantees long-lasting smoothness, "mirror" shine, and heat protection up to 230°C for thermal styling routines.

This serum seals the hair’s keratin structure to control frizz and volume for up to 10 washes, even in humidity conditions up to 80%. It helps reduce styling time by half when used in combination with the Smooth Transformer shampoo and conditioner from the same range. Its texture is lightweight and fluid, absorbs quickly, and spreads easily on damp hair, leaving strands aligned, soft, and with a glossy finish.

It is free from alcohol and artificial colorants, respects the hair fiber, and offers professional results. For best results, apply after rinsing the mask, separate the hair into 4 sections, and apply 2 to 3 pumps per section, without rinsing.

Benefits

  • Smoothing of the cuticle and reduction of friction between hair fibers.
  • Protection against frizz and absorption of moisture from the environment.
  • Heat protection during the use of heat styling tools.
  • Strengthening of the hair structure through protein replenishment.

Instructions for Use

Apply 1-2 pumps of the product to washed, towel-dried hair. Distribute evenly through the lengths and ends, avoiding the roots. Do not rinse. Proceed to blow-dry or style with heat tools. It can also be applied to dry hair for final frizz control.

Ingredients

  • Pro-Keratin
  • Evening Primrose Oil
  • Kukui Nut Oil
  • Dimethicone

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Specifications

Active Ingredient
Keratin

Active Ingredient

Keratin
Reconstructs and strengthens the hair by filling in damaged areas and reducing breakage.
Action [Hair]
Anti-Frizz, Brightening
Hair Type
Normal
Professional Hair Brands
Yes

Additional Specifications

For Scalp
No

For Scalp

Nourishes and protects the scalp, promoting strong, healthy, and thick hair.
Application Method
Leave In

Application Method

Leave In
Hair product that you apply and leave in without rinsing out.

Quantity

Mass Gaining
50 ml

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (3)

Reviews

5.0
3
5.0
Review this product
  1. 3
  2. 4 stars
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  3. 3 stars
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  4. 2 stars
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  5. 1 star
    0
Review this product

Description & Specifications

L'Oréal Professionnel Keratin Alpha Sleek Serum 50ml is a professional leave-in serum, with a formula containing 5% Keratin Sealer, ideal for all hair types with frizz and unruly volume. It guarantees long-lasting smoothness, "mirror" shine, and heat protection up to 230°C for thermal styling routines.

This serum seals the hair’s keratin structure to control frizz and volume for up to 10 washes, even in humidity conditions up to 80%. It helps reduce styling time by half when used in combination with the Smooth Transformer shampoo and conditioner from the same range. Its texture is lightweight and fluid, absorbs quickly, and spreads easily on damp hair, leaving strands aligned, soft, and with a glossy finish.

It is free from alcohol and artificial colorants, respects the hair fiber, and offers professional results. For best results, apply after rinsing the mask, separate the hair into 4 sections, and apply 2 to 3 pumps per section, without rinsing.

Benefits

  • Smoothing of the cuticle and reduction of friction between hair fibers.
  • Protection against frizz and absorption of moisture from the environment.
  • Heat protection during the use of heat styling tools.
  • Strengthening of the hair structure through protein replenishment.

Instructions for Use

Apply 1-2 pumps of the product to washed, towel-dried hair. Distribute evenly through the lengths and ends, avoiding the roots. Do not rinse. Proceed to blow-dry or style with heat tools. It can also be applied to dry hair for final frizz control.

Ingredients

  • Pro-Keratin
  • Evening Primrose Oil
  • Kukui Nut Oil
  • Dimethicone

Manufacturer

Manufacturer Details

Warnings & Safety Information

Specifications

Active Ingredient
Keratin

Active Ingredient

Keratin
Reconstructs and strengthens the hair by filling in damaged areas and reducing breakage.
Action [Hair]
Anti-Frizz, Brightening
Hair Type
Normal
Professional Hair Brands
Yes

Additional Specifications

For Scalp
No

For Scalp

Nourishes and protects the scalp, promoting strong, healthy, and thick hair.
Application Method
Leave In

Application Method

Leave In
Hair product that you apply and leave in without rinsing out.

Quantity

Mass Gaining
50 ml

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (3)

5.0
3
5.0
Review this product
  1. 3
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
21,99 €
14,00 €   shipping cost