Toner & gloss formula

Toner formula: level 10 to 10

The diluted violet demi for a level 10 that has been through bleach more than once, why the clear is in the bowl, and what to do when the ends go purple anyway.

Published 2026-09-07, updated 2026-09-23. Written by the Easy Hair Edit team and checked against the rules the rest of the site follows.

Before and after: a freshly lifted level 10, still warm, then toned to a clean level 10, lightest blonde
Left: a freshly lifted level 10, still warm, before. Right: a clean, pale, cool level 10 with the cream-yellow gone and no purple in it, after demi-permanent 10.2 (10V violet) or 10.21 (10P pearl) on 10 vol, 5 to 10 minutes. Illustration, not a photograph.
The formula
In the chair: 15 to 25 min Medium Lasts 2 to 4 weeks
Product
Demi-permanent 10.2 (10V violet) or 10.21 (10P pearl), diluted equal parts with clear
Developer
10 vol (3%), or the line's own toning developer at 5 to 9 vol
Ratio
1:2, or the ratio on the tube
Amount
15 g toner + 15 g clear, then 60 g developer, for shoulder-length hair; half an ounce, half an ounce, two ounces
Processing
5 to 10 minutes; wipe a root piece at 3, ends on for the last 2 to 3
Result
A clean, pale, cool level 10 with the cream-yellow gone and no purple in it

Steps

  1. Read the level dry with the lightener rinsed out. Bleach still on the hair looks whiter than it rinses. Palest yellow, close to cream, is a 10; if you can point to yellow it is a 9 and this is the wrong page.
  2. Shampoo the lightener out, condition, and towel-dry until it stops dripping; the water left in damp hair evens out the porosity. Section into four.
  3. Weigh 15 g of clear, then 15 g of 10.2 or 10.21, then 60 g of 10 vol. Whisk until there are no streaks, and mix it only once the hair is sectioned, because it starts working in the bowl.
  4. Roots first, then the mid-lengths, fast, inside four or five minutes. The root is the least porous hair on the head and takes longest; wipe a root piece as soon as the mids are covered.
  5. Ends last, once a wiped root piece has started to cool, from the same bowl diluted again with clear if the test piece went purple. Timer at 5 when the ends are on.
  6. Rinse the ends the moment a wiped end reads clean and cool, two or three minutes in, and the roots and mids by minute ten at the outside. Past ten the roots go gray-violet.
  7. Rinse, shampoo, condition, and dry it fully before she sees the mirror. It looks purple on the head and darker wet, and a hint of violet leaves in a wash or two.
From the chair
  • Label the clear. In the bowl it looks exactly like developer, and a squeeze bottle with masking tape on it saves the mix.
  • If the ends already read cool before you start, leave them out, or give them clear only, the way some colorists paint clear over the tips so they cannot grab the violet.
  • Have the clarifying shampoo at the bowl before you start. If you need it, you need it in the next minute.
  • Patch test 48 hours ahead when the tube is new to you, behind the ear or in the elbow crease.
The quick version

Dilute demi 10.2 (10V) or 10.21 (10P) equal parts with clear, then mix with 10 vol (3%) at 1:2, and leave it on towel-dried level 10 hair for 5 to 10 minutes, roots first, ends last and rinsed first. The hair stays a 10; the last of the pale yellow goes and it reads clean and cool. Full-strength violet on a porous 10 is purple by minute four.

Minute four. The roots have not moved, the mid-lengths are just beginning to lose their cream, and the last two inches, bleached five times since spring, are purple and deepening while you watch. That is full-strength violet on a porous 10, and it is how most people find this page.

The card is the version that does not do it: half toner, half clear, ten volume or the processing solution that comes with the line, five to ten minutes, roots first, ends last and off first.

Why a 10 takes toner in minutes

A level 10 on the site chart is palest yellow, close to cream, on hair that has nearly always been bleached more than once. No orange is left, so the neutralizer is violet or pearl, diluted; a toner deposits without lifting, so the hair stays a 10 either way. Getting to the level in the first place is a lift, a 7 taken to a 9 on permanent, and then a round more. The toner selector picks the family once you have read the rinsed strand. The pigment left is faint, so a violet that takes fifteen minutes on a 9 is done on a 10 in five, and the ends grab it first and go purple before the roots have cooled; the colorists who tone 10s paint clear over the tips for that reason.

Half clear

Clear is the demi base with no pigment. Weigh 15 g of it into the bowl first, then 15 g of 10.2 (10V) or 10.21 (10P), then 60 g of 10 vol: half an ounce, half an ounce, two ounces. Diluting equal parts with clear halves the violet in every gram, so the hair reaches five minutes still blonde. On a fresh 10 from a single lift, two parts toner to one of clear is enough; on anything bleached three or more times, equal parts, and on the ends some go to one part toner to two of clear.

Shampoo, condition, towel-dry

The lightener comes out with shampoo, then conditioner, then a towel until the hair stops dripping. Damp hair evens out the porosity; dripping wet thins the toner unevenly, and bone-dry porous ends pull the violet straight in and stripe. Section into four and mix only once the hair is ready, because it starts working in the bowl. Then roots first, because on a 10 vol demi the root is the least porous hair on the head and takes longest. The whole head covered inside four or five minutes, or one side goes purple while the other is still cream. Ends last, from the same bowl diluted again if the test piece went purple, for the final two or three minutes.

The wipe, minute by minute

MinuteRootsMid-lengthsPorous ends (on at 5)
3Cream, barely coolerCream, a little coolerStill bare
5Slightly coolerClean pale blondeJust on
8Done; rinseCool, at the edgeDone; rinse them first
10Gray-violet past hereGray-violetPurple and flat

Wipe a root piece at 3 and at 5, and pull it when the wiped piece reads clean, whatever the box says. It looks purple on the head the whole time, and darker wet, so nothing is judged until it is rinsed and dry. The eight-question porosity test tells you before you mix whether the ends belong in the last column.

Purple ends, and the way back

Over-toned, a 10 goes purple at the ends, then a flat cool gray that reads dirty. Fresh, it comes out: rinse at once and wash twice with a clarifying shampoo. If it will not budge, the pros reach for a bleach bath, lightener with shampoo and 10 vol, off the scalp, and that is a job for a colorist rather than a bathroom.

The hair might be a 9 A 10 that still looks yellow after ten minutes was a 9 at the roots, and no amount of violet makes a 9 read white. Read a dry, rinsed section; if that is where you are, the 9 to 10 nudge is a permanent shade on 20 vol with its own warnings.

Two to four weeks, and the softer grow-out

Two to four weeks on this hair, against the four to eight colorists quote for a toner on hair lifted once. The violet leaves first and the cream comes back from the ends inward. Purple shampoo once a week from week two is upkeep; twice a week on a porous 10 is purple by another route. When regrowth shows against a 10, most salons now offer a root shadow: an 8N or a 9 demi an inch down, blurred into the diluted 10 through the lengths, on 10 vol, and it reads expensive.

Toning a level 10, the questions that come up

Can I use full-strength 10.2 on level 10 hair?

On a fresh, single-lift 10 with ends that do not stretch when wet, for three or four minutes, watched the whole time. On anything bleached more than twice, no. It goes purple at the ends before you have finished the roots, and the pros who tone 10s put clear on the ends for that reason.

My level 10 went purple. How do I get it out?

Two washes, straight away, with a clarifying shampoo. A hint of violet leaves on its own in a shampoo or two; a heavy over-tone that reads flat and gray takes the clarifier, and if it will not budge, a bleach bath off the scalp, lightener with shampoo and 10 vol for a few minutes, is what colorists use to pull an over-tone.

Should I tone level 10 hair wet or dry?

Towel-dried, until it has stopped dripping. The water evens out the porosity so the ends do not grab first. Dripping wet dilutes the toner unevenly, and bone-dry porous ends pull it straight in and stripe.

How long does toner last on level 10 hair?

Two to four weeks on a 10 that has been bleached several times; colorists quote four to eight for a toner on hair lifted once. The violet leaves from the ends inward, so the cream comes back at the tips first. Purple shampoo once a week from week two is upkeep and stretches it; twice a week on a porous 10 puts the purple back.

Does this formula make level 10 hair white?

It takes the last of the yellow out, so a toned 10 reads as a very pale, cool blonde. White has no pigment in it at all, and no toner gets there. For the grayer, cooler version, the silver route adds a touch of ash, and the tool that picks between the two works from the yellow you see after the rinse.