🧪 How to Use Wella Colour Touch Plus Developer 4% (13 Vol)

⚡ Mixing Ratio

• 1:2 ratio
  👉 1 part Colour Touch / Colour Touch Plus colour
  👉 2 parts Developer 4%

🎯 Application

• Apply to dry or towel-dried hair
• Suitable for:Full head colourRoot application (grey blending)Mid-lengths & ends refresh
• Ensure even saturation for consistent colour results

⏱ Processing Time

• 15–20 minutes (standard)
• Up to 25 minutes for:Resistant hairHigher grey percentagesDeeper colour results

🚿 Rinse & Finish

• Emulsify with a little water
• Rinse thoroughly until water runs clear
• Follow with colour-safe shampoo & conditioner

⚠️ Pro Tips (Salon Use)

• Use 4% for stronger deposit + enhanced grey coverage
• Choose 1.9% instead for glossing or soft toning
• Do not use for lightening (deposit-only system)
• Always wear gloves & perform a patch test
• Stick to the Wella system for best results

What is Wella Colour Touch Plus Developer 4% used for?

It’s a 13 volume developer designed for use with Wella Colour Touch and Colour Touch Plus, helping deliver deeper colour, enhanced grey coverage, and even results.

What strength is 4% developer?

4% = 13 volume developer, ideal for stronger colour deposit and improved grey blending in demi-permanent hair colour services.

What is the difference between 1.9% and 4% developer?

• 1.9% (6 vol) → light deposit, toning, glossing
• 4% (13 vol) → deeper colour, better grey coverage, more intensity

👉 Choose 4% when you need more coverage and richer results.

Can I use 4% developer for toning?

Yes, but it’s typically used when you want more depth or stronger pigment deposit. For soft toning or glossing, 1.9% is usually preferred.

Does 4% developer lighten hair?

No — when used with Colour Touch, it is a deposit-only system, designed to enhance, tone, and deepen colour, not lift.

What is the mixing ratio with Colour Touch Plus Developer?

Use a 1:2 mixing ratio:
👉 1 part colour + 2 parts developer

How long should it process?

• Standard: 15–20 minutes
• Up to 25 minutes for stronger results or resistant hair

Can I use this developer with other brands?

For best results, use with Wella Colour Touch or Colour Touch Plus. Mixing with other brands may affect performance and colour accuracy.

Is this suitable for grey hair coverage?

Yes — 4% developer helps maximise grey blending and coverage, especially when used with Colour Touch Plus shades.

Why do salons choose Wella 4% developer?

Because it delivers:

• Consistent, predictable colour results
• Improved grey coverage vs lower strengths
• Smooth, even application
• Reliable performance in professional colour services