L'Oreal Professionnel Serie Expert Keratin Alpha Sleek Hair Serum 50ml
L'Oreal Professionnel Serie Expert Keratin Alpha Sleek Hair Serum (50ml) is a professional finishing serum designed to smooth, seal and protect the hair fibre while helping control frizz and unwanted volume. Formulated with 5% Keratin Sealer, this mirror-like smoothing serum works to seal the hair's keratin structure, leaving strands visibly smoother, shinier and easier to style. Used as part of the Keratin Alpha Sleek routine, it helps reprogram hair for up to 2 weeks of frizz control¹.
The heat-activated formula enhances shine and protects the hair fibre while supporting smoother styling results. It helps defend against humidity and heat damage while improving overall manageability, leaving hair glossy, controlled and polished without heaviness. Artificial colourant-free and alcohol-free, it delivers professional smoothing performance with a lightweight finish.
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 instant shine that can last up to 5 day.
- Helps protect hair against up to 80% humidity.
- Provides heat protection up to 230°C.
Claims:
- ¹Instrumental test after 4 uses of Smooth Transformer.
- ²Instrumental tests with routine used 4 times: Shampoo + Smooth Transformer + Leave-on.
- ³Consumer test on 68 participants, 1 application per week for 4 weeks. Based on a 15-day break observation.
- Instrumental test after 1 application of shampoo, mask and serum.
- Instrumental tests with full routine after 4 uses of Smooth Transformer.
- Instrumental tests.
Directions of use:
- Apply a small amount evenly through lengths and ends of damp hair.
- Blow-dry to activate the smoothing effect.
- For longer-lasting results, use a straightening iron after drying.
- Use as part of the Keratin Alpha Sleek routine.
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L'Oreal Professionnel Serie Expert Keratin Alpha Sleek Hair Serum 50ml
L'Oreal Professionnel Serie Expert Keratin Alpha Sleek Hair Serum (50ml) is a professional finishing serum designed to smooth, seal and protect the hair fibre while helping control frizz and unwanted volume. Formulated with 5% Keratin Sealer, this mirror-like smoothing serum works to seal the hair's keratin structure, leaving strands visibly smoother, shinier and easier to style. Used as part of the Keratin Alpha Sleek routine, it helps reprogram hair for up to 2 weeks of frizz control¹.
The heat-activated formula enhances shine and protects the hair fibre while supporting smoother styling results. It helps defend against humidity and heat damage while improving overall manageability, leaving hair glossy, controlled and polished without heaviness. Artificial colourant-free and alcohol-free, it delivers professional smoothing performance with a lightweight finish.
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 instant shine that can last up to 5 day.
- Helps protect hair against up to 80% humidity.
- Provides heat protection up to 230°C.
Claims:
- ¹Instrumental test after 4 uses of Smooth Transformer.
- ²Instrumental tests with routine used 4 times: Shampoo + Smooth Transformer + Leave-on.
- ³Consumer test on 68 participants, 1 application per week for 4 weeks. Based on a 15-day break observation.
- Instrumental test after 1 application of shampoo, mask and serum.
- Instrumental tests with full routine after 4 uses of Smooth Transformer.
- Instrumental tests.
Directions of use:
- Apply a small amount evenly through lengths and ends of damp hair.
- Blow-dry to activate the smoothing effect.
- For longer-lasting results, use a straightening iron after drying.
- Use as part of the Keratin Alpha Sleek routine.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
L'Oreal Professionnel Serie Expert Keratin Alpha Sleek Hair Serum (50ml) is a professional finishing serum designed to smooth, seal and protect the hair fibre while helping control frizz and unwanted volume. Formulated with 5% Keratin Sealer, this mirror-like smoothing serum works to seal the hair's keratin structure, leaving strands visibly smoother, shinier and easier to style. Used as part of the Keratin Alpha Sleek routine, it helps reprogram hair for up to 2 weeks of frizz control¹.
The heat-activated formula enhances shine and protects the hair fibre while supporting smoother styling results. It helps defend against humidity and heat damage while improving overall manageability, leaving hair glossy, controlled and polished without heaviness. Artificial colourant-free and alcohol-free, it delivers professional smoothing performance with a lightweight finish.
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 instant shine that can last up to 5 day.
- Helps protect hair against up to 80% humidity.
- Provides heat protection up to 230°C.
Claims:
- ¹Instrumental test after 4 uses of Smooth Transformer.
- ²Instrumental tests with routine used 4 times: Shampoo + Smooth Transformer + Leave-on.
- ³Consumer test on 68 participants, 1 application per week for 4 weeks. Based on a 15-day break observation.
- Instrumental test after 1 application of shampoo, mask and serum.
- Instrumental tests with full routine after 4 uses of Smooth Transformer.
- Instrumental tests.
Directions of use:
- Apply a small amount evenly through lengths and ends of damp hair.
- Blow-dry to activate the smoothing effect.
- For longer-lasting results, use a straightening iron after drying.
- Use as part of the Keratin Alpha Sleek routine.
