Oil blends and serums are incredibly versatile--you can use them as a sealer on wet hair or to enhance dry hair. You can use them as a pre-poo treatment prior to cleansing, before blow-drying to protect your hair from the blow dryer's heat, as a finishing product to help control and smooth your style or as a touch up on second, third, fourth day hair and beyond to add back shine and help control frizz and flyaways.

A lot of these products also treat and nourish the hair thanks to the benefits of the oils and  ingredients inside. Here are some great oil blends for wavy hair.