Hair-care is a must, especially when we are exposing ourselves to the daily environmental factors and the climate change the world is facing. Therefore, hair specialist and stylist Nicolas Hallak of "Nicolas and

Jean" Beauty Salon shares with you a weekly tip to get and keep beautiful, healthy hair.

This week, Hallak tackles the perfect way to wash your hair. He warns us from washing it daily, as excessive washing dries it out and deprives it from natural oils - what renders it matted and dull. We also should avoid tying it when wet in order to keep it healthy.

Nicolas Hallak recommends washing our hair when in need, according to our activity and extent of perspiration. Wash your hair with a chemical-free shampoo that is smooth on your hair scalp in order to avoid dryness. In addition, it is important to wash it with cold water to help massage the hair roots and give your hair a sleek, shiny look.

Click through the Photo Gallery to view the perfect chemical-free shampoo out there.

Mirella Haddad