Use Professional Products
You can definitely go the frugal route and purchase whatever liters on sale at Target or Ulta, however when you purchase from a professional salon your products are not only more concentrated, but also better for your hair in the long term. Most products have a "cosmetic repair" where professional grade products such as Davines® contain ingredients like Roucou oil that gradually heal the hair and don't cause a residue. When you purchase retail from your salon you're guaranteed to see optimal performance of your hair and if your hair is not feeling it, your salon will happily exchange the products for something that suits your needs a little better. - Tina R.