New line by Kérastase

These five key players take action in unison, just like a ballet troupe and after many grueling “casting sessions” they were chosen by L’Oréal. Advanced Research for their beneficial effect on the structure of the hair. "Three specially selected amino acids to replenish deficient areas, even deep down. Glutamic acid, serine and arginine (the amino acids that account for more than one third of those naturally occurring in the hair) are effectively characterized by their particular type of natural affinity with the hair fiber: as they are positively charged, they attach to the negatively charged areas that are characteristic of damaged hair", the company says.
Every weak zone, every zone lacking in substance, is once again perfectly replenished. One wheat protein derivative to re-enforce the smoothing action. Selected for its wealth of amino acids naturally occurring in the hair.