Before you can treat yourself to luxury hair products, you'll need to know your curl type. Learning about the structure and texture of your hair can help you take better care of it and will guide your product choices.

According to the FIA hair identification system, there are four types of hair texture on the spectrum, ranging from very straight through to a very tight coil. The FIA hair system will also help you identify the texture of your individual strands so that you can tailor the care more specifically to your hair type.

The FIA classification system uses numbers to classify the hair type (straight, wavy, curly etc.) and letters to classify the tightness of the curl.

For example: type 1 hair is straight, type two hair is wavy, type 3 hair is curly, and type 4 hair is coily. Once you've established your hair type, you can use the letters to grade how much texture your hair type has. To make sure you can tailor the care you give your curls, you'll also need to know how thick your hair is. This will determine how much product you'll need to apply and how long to leave it in — very thick hair will typically need longer for treatments. It will also need to be sectioned off for product application to ensure a thorough coating.