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Highlights

Formula: Highlights from level 7 to level 10

Highlights from level 7 (Medium blonde) to level 10 (Extra light blonde) remain one of the most classic and profitable salon services. With 3 levels of lift required, you need to account for the orange-yellow underlying pigment at the starting level, reaching a pale yellow background at the target level. Precision in sectioning, the thickness of each highlight, and the amount of product applied will determine the final result. Insufficient saturation leaves uneven highlights, while too much product can cause overlapping. In this guide you will find the recommended developer, processing times, and exact steps to achieve uniform, luminous highlights.

Before and after highlights from level 7 to level 10

Process steps

1

Diagnosis and planning

Evaluate the starting level (7, Medium blonde) and determine the desired highlight density. Define the pattern: fine highlights for a natural effect or chunky for more contrast. The underlying pigment at the starting level (orange-yellow) indicates the journey the product must take.

2

Product preparation

Mix lightener with 30vol (9%) developer in a 1:1.5 or 1:2 ratio depending on the brand. To achieve 3 levels of lift, 30vol provides adequate power. The mix should be firm to prevent it from spreading outside the foil.

3

Sectioning and foil application

Work in horizontal sections from bottom to top. Place foil underneath the section, apply product evenly from root (leaving 0.5 cm) to ends. Close the foil without excessive pressure. Alternate sections with and without highlights to maintain the desired ratio.

4

Controlled processing

Process for 30-45 minutes. Check by opening one foil every 10 minutes to verify lift level. The goal is to see a pale yellow background, indicating you have reached level 10. Internal foil temperature accelerates the process, so monitor highlights near the root which process faster.

5

Removal and finishing

Remove foils starting with the first ones applied. Rinse with lukewarm water. If you need to neutralize the pale yellow background, apply a toner with Touch of violet to neutralize pale yellow. Process 15-20 minutes, rinse, and apply a conditioning treatment to restore moisture.

Technical details

Developer 30vol (9%)
Processing time 30-45 minutes
Underlying pigment Pale yellow
Neutralization Touch of violet to neutralize pale yellow

Professional tips

  • Keep the mix firm inside the foil. If the product is too liquid, it will seep and create spots on natural sections.
  • Finer highlights give a more natural result. For a "lived-in" effect, alternate between fine and medium highlights.
  • Don't open all foils to check: pick one representative foil from each zone (nape, side, crown) every 10 minutes.
  • For cooler highlights, add a touch of ash corrector to the lightener mix. This compensates for the warm underlying pigment during lifting.
We answer your questions

Frequently asked questions

About this specific formula

For a natural result with 3 levels of lift, fine highlights (1-2mm) evenly distributed work best. For a more dramatic look, alternate 2-3mm highlights with natural sections. Thickness affects the perception of the final level: finer highlights appear lighter overall.
Yes, 30vol (9%) is the correct choice for highlights needing 3 levels of lift. Inside the foil, generated heat boosts product action, so monitor timing carefully. On previously treated hair, consider reducing the volume for more control.
Highlights like these need touch-ups every 8-12 weeks, depending on growth rate. During touch-ups, apply product only to new growth to avoid overlapping that damages the lengths. Alternating toning sessions between touch-ups keeps the tone fresh.

This formula is a guideline

Blendsor analyzes 70+ real hair variables from your client to generate an exact, personalized formula. Hair photo, chemical history, porosity, product type... everything counts.