Description
The 40 volume developer is the strongest and has the potential to produce significant changes. It will lift your hair four shades and is suitable for blondes, especially high-lift colors. You can use 40 volume developer when you want to achieve a medium to dark blonde. You can also use it with bleach for better results. However, use it carefully to avoid adverse effects that may arise due to its strength.
Features:
- Conditioning and moisturizing
- Optimum softness
- Improves color penetration
- Optimizes long term color stability
Application: Mix thoroughly with coloring cream until a uniform smooth cream is attained.
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