Anyone with colour-treated hair who wants one leave-in step that detangles, protects from heat styling and adds shine. Pureology lists it for straight, wavy, curly and coily hair in fine, medium and thick textures, and it works just as well on uncoloured hair.

It is a retail leave-in for everyday use at home, and stylists use it the same way as a prep spray before blow-drying. Very fine hair that is easily weighed down should start with a few sprays; Pureology suggests that fine hair can be detangled with it in the shower and the excess rinsed out.

Most people with coloured hair end up layering a detangler, a heat protectant and something for shine. Color Fanatic folds those jobs into a single spray that goes on right after the towel, so the routine gets shorter without skipping the protection step. Because it is built around Pureology's Antifade Complex, the step that protects hair from the dryer also helps keep a colour service looking fresh between salon visits.

• Spray onto clean, damp hair.
• Comb through from mid-lengths to ends before any other styling product or heat tool.
• Style as usual.
• Through the day, a light mist on dry hair helps with frizz control, shine and UV protection.

For fine hair, Pureology suggests applying it in the shower, detangling, then rinsing the excess to avoid weight. For extra colour protection, mist onto dry hair before swimming or long sun exposure.

Pros:

• Replaces a separate detangler, heat protectant and shine spray with one product
• Heat protection rated to 450°F by Pureology, which covers typical flat iron and curling iron settings
• Makes wet combing much easier, which cuts down on breakage from brushing
• Two sizes, so a regular user can move to the 400 ml bottle

Cons:

• Silicone-based slip means it is not suited to a silicone-free routine
• Overspraying can leave fine hair limp, so start light
• Fragranced, with allergens such as linalool, geraniol and citronellol listed