The chart puts yellow at 8. On the head, an 8 that stalled often still shows orange at the scalp, and half the colorists call that orange the pigment of level 8 while the other half call it a 7 that did not finish.
Read the strand you scraped, not the chart.
Yellow to the scalp, or orange still under it
Level 8, light blonde, is the first level where a blonde toner does what people expect, as long as the wiped strand is yellow to the scalp. Lightener still on the hair looks whiter than it will rinse, so judge it after the rinse, dry, and against a piece of white paper if the room is lit warm, because a warm bulb reads it lighter and more golden than it is. Yellow root to tip with no orange is an 8, the yellow foils on a 5 rinse out at. Orange at the root is scalp hair that stalled, and a toner built for yellow leaves it there. That root wants a 7.12 of its own or another pass of lightener, and no toner evens out the two.
Violet for the yellow, blue for what is left
Violet cancels yellow. Blue cancels orange. An 8 is yellow with, on most heads, a trace of orange, so the bowl is violet-blue: 8.2, the 8V, for the yellow, and 8.1, the 8A, for the trace, in equal parts. Straight ash at 8 leaves some yellow and can sit greenish at the ends, and straight violet leaves the orange. 8.13, the beige, is ash and gold together and lands as a soft sand. It is the tube for the client who says natural, and the one most colorists reach for when they want the shine kept, because a head with every trace of gold canceled goes flat and dingy. The developer that lifts nothing is 10 vol, or the toning developer the line sells at 5 to 9 vol. Thirty grams of toner, about an ounce, to 60 g of developer, or the ratio on the tube, since every line mixes differently.
Damp, fast, wiped every five
Shampoo, condition, towel-dry to damp. Roots first: the root is the least porous hair on the head and takes longest. Ends last, because they grab, and ends that have seen lightener more than once get their share diluted 1:1 with clear, which halves the pigment. Saturate. Get it on inside a few minutes, hands or a bottle, and start one timer when the last section is on. Then wipe a root strand every 5 minutes and read the strand, because purple on the head is what a working toner looks like and tells you nothing about the tone under it. Somewhere between 10 and 20 the wiped strand shows a clean blonde with no yellow, and that is when it comes off, whether that is minute 10 or minute 20. Rinse, condition, dry it fully. Wet hair reads a level darker, and a faint violet in the first dry leaves in a shampoo or two.
Gray, greenish, purple, or still yellow
| What dried on the head | Why | Next time |
|---|---|---|
| Gray, flat, dingy | Too much cool pigment, or too long on porous ends | Pull the ends earlier, clear on the ends, gold in the bowl |
| Greenish at the ends | Blue over yellow with no orange to cancel | More violet, less ash |
| Purple that fades in two washes | Violet still sitting on the surface | Nothing, wait two shampoos |
| Purple that stays | Over-toned, usually ends that were paler than the rest | A bleach bath off the scalp, then a softer bowl |
| Still yellow | Pulled too early, or a level-10 toner on an 8 | Tone at the level reached |
| Cool on one side, yellow on the other | Slow application | Whole head on inside a few minutes |
A darker root on purpose
On a head lifted to 8 whole, the regrowth in six weeks is a band. Some colorists plan for it at the bowl: a natural shade a level or two darker, a 6N or 7N, an inch down from the scalp, blurred into the 8 toner through the lengths, so the grow-out reads as a design. It is called a root shadow, a tap, a smudge or a melt depending on who is holding the brush, and it is one of the most common toning jobs there is. A porosity check before the bowl tells you which ends will grab the shadow and need the clear.
The six-week slide
The cool goes first. By week three the ends read faintly gold, the root follows, and by week six the head is a plain yellow 8 again. Purple shampoo once a week from a few washes in slows that, a little each wash. The refresh is the same bowl, and if she wants lighter by then, the 8 to 9 route on 20 vol is the neighboring page, with its own costs stated.