First up, it smells AMAZING. The mixture of Pomengranate, Jojoba, Almond and Karenja oil help not only with the fragrance, which is fresh and fruity, but also the condition of hair. Jojoba Oil adds moisture and gives hair protection against UV rays, it also cleanses hair. Pomegranate Oil brings back shine and protects against colour fade. Almond Oil improves lustre and softness, also a shine helper by smoothing hair cuticles.
You can pick up the Illumioil online, at £29 for 50ml (or £12 for 15ml) it's slightly more than you might pay for products, but with four uses it's worth it. And you only need a small drop to cover mid length hair, with maybe a teeny tiny bit more for long hair, so it'll last ages. Highly recommend!