A good hair loss preventing shampoo contains a calculated amount of Sodium Lauryl Sulfate (SAS), and Sodium Laureth Sulfate (SLS) blended with a PH rate so that the product may not damage your hair further. If you go for an unauthorized product, which is available in abundance, you will end up creating a huge mess that no clinic in the world will be able to solve. Apart from these chemicals, make sure that the shampoo also contains some really good amount of Aloe Vera gel. It’s a nature’s gift for your hair and skin, and many third-grade products are sold in the market just using clever marketing tactics. Beware and always make sure that the product you are buying is authentic.