Eugene Perma Essentiel Age Requirement: mature hair
Over time, the accumulation of external aggression (mechanical wear, chemical treatments, UV rays, cold, wind, pollution, ...) and internal factors (stress, hormonal changes ...), the hair becomes more fragile. The density of the protein fibers and in particular of keratin decreases. Hair keratin depleted are more sensitive and degrade. They are refined, dry up and lose density. The hair looks lifeless and tired.