Hair is a strange size. For many years, hair has been an expression of one's style and personality. It is seen more and more that both men and women spend more money on getting their hair dyed, cut and made permanent, which can contribute to damaging the hair. Hair consists mainly of keratin and pigments, which help to determine the color of the hair. Healthy hair is really strong. A single strand of hair can hold 100 g by itself. On the other hand, if the hair is unhealthy / damaged, you will find that the hair has a greater tendency to break, as well as to look frizzy and split. To maintain one's healthy hair, one can make use of some different hair products, such as shampoo to keep the hair clean; conditioner, to make it smooth and radiant; hair treatment, to repair damaged hair. However, many shampoos and conditioners today also have a protective and tonic effect. Brands such as Schwarzkopf and L’Oreal, for example, have developed this.