Hair Oils: 5 options for all hair types

Left to right: L'oreal Mythic Oil; Caudalie Divine Oil; Ojon Instant Restorative Hair Serum; Percy & Reed No Oil Oil; Shu Uemura Essence Absolue

This is a post all about hair oils and may help you decide whether you want to use one, or if you already own some, what they can do for you.
What are hair oils? Hair oils are products that can be used to nourish, de-frizz and add shone to hair.
Should I use one? If you have flyaway, frizzy, coarse or wavy hair- then yes. Oil-based products may not sound like something you want to be applying to your hair, especially if it is already prone to becoming oily, but nowadays, there are some amazing products out there to transform the look and feel of your hair.
How do I apply hair oils? It is best to start with 1-2 drops and start at the ends and lengths of hair. If you apply near your scalp, it should only be applied very lightly (using any excess oil on your hands). This can be good for taming flyaway baby hairs. Some products work best on damp hair rather than dry hair, although I apply them on both.
And now onto the products: