Kim Kardashian's platinum blonde in 2014? It's him. From Karlie Kloss to Isabelli Fontana, top Lara Stone, dancer Dorothée Gilbert and actress Eva Green, Frédéric Mennetrier, maestro of color in her Atelier Blanc *, takes care of the colored hair of the biggest stars.

His explanations and tips to catch a color spoiled by the light of summer.

When returning from holidays, what is the most common demand for coloring?

"It's simple: to find its nuance before the holidays.Under the effect of the sun, the color, even natural, oxidizes.The browns are tarnished, the blond and ashen turn green, the red is reflected reflections golden ... No matter how you treat your hair, the leakage of pigments is irremediable, the fault with the UV! Add to that the chlorine of the pool and the sea water which dehydrate the hair fiber and the summer becomes the season of all dangers! "

What treatments apply to UV-washed stains?

"We are going to recolor the hair with products adapted to the tint of the moment, considering the possible reflections and differences of shades on the whole of the hair.This implies preparations with dosages and mixtures on measure.

As the hair is often dehydrated, we opt for soft technologies called "gloss" which in addition to coloring the hair, act as a deep care thanks to their PH acid, which will allow to reconstitute the hair fiber , to close the scales and to obtain a lasting and brilliant color. The more porous the hair is, which is usually the case when you come back from vacation, the more effective this technology will be. "

Are there solutions to repair the damage yourself, at home?

"At home, we will be able, to a certain extent, to have an effect on the texture of the hair.If it is dry and dehydrated or brittle, we will be able to feed it and smooth it with certain detangling treatments or masks. hair is very damaged, however, do not expect miracles.

Only deep salon treatments can repair the fiber. Today, ceramide, relipidant and protective complexes are added very regularly at different stages of the coloration. These are powerful assets that provide great results but are only intended for professional use. "

In everyday life, how to preserve an optimal hair texture and thus prolong the duration of its color?

"No need to invest in a lot of products!" My first tip is to use a shampoo with a gentle cleansing base , without sulphates - very detergent for a colored hair.The products specially formulated for frequent use are generally the case.

In the case of long, thick, dry hair, the systematic use of a detangler after the shampoo will greatly facilitate styling. To nourish and gain fiber, nothing like a repairing mask with nourishing active ingredients that is applied before shampooing and that is allowed to rest for several hours -on the lengths only-, or even overnight for those who have courage, at least once a week.

I do not believe in 'flash' products that are allowed to sit for two minutes in the wet shower! "

* The White Workshop, 13 rue Vivienne, Paris 2nd. By appointment from Monday to Saturday, from 9:30 to 19:00. Telephone: 01 42 39 62 70