What is a Keratin Hair Treatment? The Essentials.

Let's talk keratin first. Keratin is a protein naturally produced by the body. It helps form the hair, nails and the outer layer of the skin, supporting their overall health. There are two types of keratin in the body (Type I and Type II), and those found in the hair are considered Alpha-Keratins because of their specific form. Keratin is actually the main component of hair – the building block that dictates each strand's shape, strength, and elasticity.

Keratin hair treatments can help support the hair, making it smoother and shinier. A keratin hair treatment is a chemical protein treatment designed to smooth the hair cuticle. Basically, it fills in overly porous hair. In this way, it can reduce frizz and increase the hair's silkiness.

Keratin treatments can have benefits for many hair types. The idea is to make the hair more manageable, so whether your hair is particularly frizzy or not, whether it is straight, wavy, or curly, a keratin hair treatment can provide help for daily styling.

Less is more when it comes to the optimal keratin treatment aftercare routine. Avoid washing the hair or using products in it for at least three days, and avoid overwashing in general. Let the smoothness and shine guide you.

An absolute innovation in the haircare case, the Keratin Alpha Sleek range by L'Oréal Professionnel has been formulated with stylists for all those who want to reduce frizz, improve smoothness, and keep hair straighter and softer, with results that last. It is a pro revolution in semi-permanent smoothing at home, that reduces styling time, for results that last two weeks.

Optimal results are obtained using the whole range. After shampooing with Keratin Alpha Sleek Shampoo, apply Keratin Alpha Sleek Smooth Transformer once a week. Use Keratin Alpha Sleek mask every other wash day of the week.

Backed by science

While other at-home smoothing treatments only act on the surface of the hair for temporary result, Keratin Alpha Sleek transforms hair at keratin alpha level, where it reshapes the hair's keratin alpha chains for long-lasting smoothness and frizz control.

Lasting results

The Keratin Alpha Sleek Smooth Transformer reprograms the hair from deep inside the fiber at keratin alpha level, reshaping the hair's keratin chains for two weeks of smooth, frizz-controlled hair* and faster daily styling. It is suitable for all hair types, including colored hair and hair that has gone through a straightening treatment.
*Consumer test after 4 applications on 67 consumers.

To preserve the hair's integrity, a new at-home anti-frizz treatment range, Keratin Alpha Sleek by L'Oréal Professionnel revolutionizes semi-permanent smoothing at home – a first of its kind.

Keratin Alpha Sleek Smooth Transformer is the only at-home treatment that transforms hair at keratin alpha level for long lasting results. Be sure to ask your salon professionals about innovative at-home semi-permanent anti-frizz treatments like the Keratin Alpha Sleek range, which can bring a range of smooth benefits, with results that last.