What is the best hair texturizer in the market? Is it better to have it in a hair salon or it can be done at home with the same results?

There are a lot of different hair texturizers on the market. Choose a texturizer that's appropriate for your hair type. Yes, it's better to let a stylist apply it for you. Most stylists are very careful when apply textuizers so that is doesn't over-process your hair.