If you're experiencing dry, brittle hair then the first thing we recommend is using the Porosity Test on your strands. This will determine whether you have low, high or medium porosity and help you understand what your hair needs. For example, if you have low-porosity, deep moisture treatments are a great way to open up the cuticles and allow moisture in. If you have high-porosity, you'll benefit from some added protein in your haircare!