Brunettes with lightened, highlighted or balayaged hair that is turning brassy, and anyone with brown hair that pulls orange. It works on colour-treated and natural hair.

Because it is strongly pigmented, it is best for people comfortable timing a treatment and wearing gloves. Stylists also use it for in-salon toning refreshes.

When brass is more than a hint, a quick pigmented rinse may not be enough. The Brass Off Mask stays on the hair for 5 to 10 minutes, giving its blue-violet pigments time to pull back copper and orange tones while it moisturizes lightened hair and revives shine. Using it every few washes alongside the Brass Off Shampoo keeps a cool brunette tone looking fresh between toner appointments.

• Shampoo with Brass Off Shampoo and towel-dry.
• Put on gloves and apply the mask to damp hair.
• Distribute evenly with a comb.
• Leave on for 5 to 10 minutes, then rinse thoroughly.

Pros:

• A leave-on toning treatment for noticeable copper and orange, beyond what a quick rinse can do
• Rich texture that does not run, so application is even
• Moisturizes as it tones
• 200 ml tube for home use and 500 ml for heavier users or salons

Cons:

• Needs gloves; the pigment can stain skin, towels and surfaces
• Timing matters: longer than 10 minutes can over-tone light or porous ends
• Designed for brunettes; blondes neutralizing yellow need a violet product