
Frequently Asked Questions
Gk hair Colors are versatile, you can use the same tube of color and pair it with 8 or 10 volume developer for Semi- permanent results and pairing the same tube of color with a 20,30,40 volume developer will give you permanent results.
8 and 10 volume developers are used for deposit only.
- Levels 1–10: 1 part color : 1.5 parts developer
- Super Lighteners: 1 part color : 2 parts developer
They are peroxide-based activators used with GK Hair Juvexin Cream Colors and Lighteners to develop pigment, provide lift, and ensure long-lasting results.
GK Hair Developers come in 10, 20, 30, and 40 Volumes (3%, 6%, 9%, 12%). Each serves a specific purpose — from deposit-only color to maximum lift.
20 Vol Developer is recommended for 100% grey coverage and is the most commonly used strength for permanent color applications.
Yes. 10 Vol Developer is perfect for toning, refreshing, or deposit-only color services.
While technically possible, it is not recommended. GK Hair Developers are specially formulated to work with GK Hair Color for optimal results, shine, and hair health.
No. Using a higher volume than required can damage the hair and scalp. Always select the right developer based on the desired lift and condition of the hair.
GK Hair has 5 developers in its professional color system:
- 8 Vol – for deposit-only color, toning, refreshing
- 10 Vol – for deposit-only color, toning, refreshing
- 20 Vol – for standard permanent color, 100% grey coverage, 1–2 levels of lift
- 30 Vol – for lighter results, resistant hair, 2–3 levels of lift
- 40 Vol – for maximum lift (3–4 levels), used with Super Lighteners or lightening products.


