L'Oréal Professionnel · Série Expert Keratin Alpha Sleek

L'Oréal Professionnel Keratin Alpha Sleek Shampoo, from the Série Expert range, is the first step in the Keratin Alpha Sleek smoothing routine. It is a sulfate-free shampoo with a creamy texture that gently cleanses the hair fiber. At the same time, it smooths and strengthens the keratin in the hair, for long-lasting softness and controlled volume.

What it does for you

• Smooth and soft hair, with an anti-frizz effect.
• Controlled volume, without puffy hair.
• Instant shine after washing.
• Hydration for dry and rough hair.
• Gentle cleansing, with a sulfate-free formula.

How to use it at home

1. Apply the shampoo evenly to wet hair.
2. Massage until you get a rich lather, then rinse thoroughly.
3. Once a week, follow with the Keratin Alpha Sleek treatment cream.
4. On other washes, use the Keratin Alpha Sleek mask.

For what hair type

For any hair type with frizz that wants to be smoother, straighter, and softer. L'Oréal Professionnel says the range is suitable for all hair types. If you want to keep your defined curls, the Curl Expression range is better suited for you.

Active ingredients

• Keratin Alpha Shaper: patented formula that smooths the fiber at the alpha-keratin level, preserving its integrity.
• Amino acid chains: work together with Keratin Alpha Shaper for disciplined hair, with controlled volume.

What else you need

• Keratin Alpha Sleek Mask
• Keratin Alpha Sleek Treatment Cream
• SteamPod Hair Iron
• Tecni.Art Fix Anti-Frizz Hairspray

ProBeauty Tip. The 500 ml Refill works as a refill. Keep the bottle and refill it; it's more practical than always buying a new bottle.

L'Oréal Professionnel Keratin Alpha Sleek Treatment Cream 200 ml, from the Série Expert range, is the weekly step in the Keratin Alpha Sleek smoothing routine. It has a creamy texture that coats the fiber and progressively smooths the hair's keratin. The result is velvety hair, with frizz and volume under control.

What it does for you

• Progressive smoothing: the more you use it, the better the result.
• Frizz and volume controlled, for disciplined hair.
• Easier daily styling, especially with the entire range routine.
• Shine and long-lasting softness.
• Hair fiber integrity preserved: reshapes the hair without damaging it.

How to use it at home

1. Once a week, wash your hair with Keratin Alpha Sleek shampoo. Shake the cream bottle well.
2. Divide your hair into two sections and apply 30–50 ml of product evenly, from mid-lengths to ends.
3. Leave on for 10–15 minutes, then rinse.
4. Dry your hair completely with a hairdryer, then straighten it with a flat iron to activate the technology.
5. For the other washes during the week, use the mask from the range.

For what hair type

For any hair type with frizz that wants to be smoother, straighter, and easier to style. Optimal results appear after 4 weeks. If you do not want to use a hairdryer and flat iron, you will not achieve the full effect. For defined curls, choose Curl Expression.

Active ingredients

• Keratin Alpha Shaper: patented formula that smooths the fiber at the alpha keratin level, preserving its integrity.
• Amino acid chains: work together with Keratin Alpha Shaper for disciplined hair, with controlled volume.

What else you need

• Keratin Alpha Sleek Shampoo
• Keratin Alpha Sleek Mask
• SteamPod Hair Straightener

The ProBeauty tip. Set aside one day a week for the cream, for example Sunday. The result is built up through regular applications, not just one.

L'Oréal Professionnel Keratin Alpha Sleek Hair Mask 250 ml, from the Série Expert range, is the mask in the Keratin Alpha Sleek smoothing routine. It has a rich texture that deeply nourishes the hair. At the same time, it reshapes and smooths the keratin in the hair fiber, for long-lasting softness and controlled volume.

What it does for you

• More disciplined and smoother hair.
• Controlled volume and anti-frizz effect.
• Deep nourishment for dry hair.
• Instant shine and soft hair.
• Short pause time, just 5 minutes.

How to use it at home

1. Wash the hair with Keratin Alpha Sleek shampoo.
2. Divide the wet hair into two sections.
3. Distribute the mask evenly throughout the length, from roots to ends.
4. Leave on for 5 minutes, then rinse thoroughly.
5. Once a week, instead of the mask, use the treatment cream from the same range.

For what type of hair

For any type of hair with frizz and volume that is difficult to control, which wants to be smoother. On very fine hair or an oily scalp, apply less at the roots. If you want to keep your curls, choose the Curl Expression range.

Active ingredients

• Keratin Alpha Shaper: patented formula that smooths the fiber at the alpha keratin level, preserving its integrity.
• Amino acid chains: work together with Keratin Alpha Shaper for disciplined hair, with controlled volume.

What else you need

• Keratin Alpha Sleek Shampoo
• Keratin Alpha Sleek Treatment Cream
• SteamPod Hair Iron

The ProBeauty tip. Then dry the hair with a brush, in small sections. The smoothness is more visible when the hair is stretched while drying.