American Crew 15 Volume (4.5%) Developer is a professional hair-coloring developer formulated to activate hair color and lightener formulas while providing controlled lift. At **15 volume (4.5 %)**, this developer is designed to gently lift natural pigment up to one to two levels, making it suitable for **depositing color, blending grey, and enhancing tone without excessive lift**.
This developer works with permanent and demi-permanent hair color systems in salon or at-home professional-grade applications. It helps open the hair cuticle just enough to allow color molecules to penetrate the hair shaft, resulting in even color development and reliable results when used according to instructions.
Benefits
- Activates hair color for predictable, professional results
- Provides gentle lift (up to 1–2 levels) without over-processing
- Helps achieve consistent tone and grey blending
- Designed for use with permanent and demi-permanent color systems
- Professional-grade formula for controlled color development
Suggested Use
- Mix with the appropriate American Crew color or lightening product according to manufacturer guidelines
- Apply mixture to dry, unwashed hair
- Process for the recommended time based on desired result and hair condition
- Rinse thoroughly and follow with shampoo and conditioner
- Use protective gloves and follow all safety instructions
