L’Oréal Paris 40 Volume Cream Developer 16 oz
Beautiful, uniform color
Rich, creamy formula
Lifting action up to 4 levels
For use with lightening products
L’Oréal Paris 40-Volume Cream Developer mixes easily with chosen hair coloring product to provide permanent color change. Has a very strong lightening action without color deposit.
Use 40 Volume for lifting action up to 4 levels or for use with lightening products. The rich, creamy formula gives you easy application and beautiful uniform results every time.
| Volume | Lightening Action | Formula Type |
|---|---|---|
| 40 | Up to 4 levels | Cream |
FAQ
Can this developer be used with both permanent and semi-permanent hair dyes?
This developer is specifically designed for use with lightening products and permanent color changes. It is not recommended for semi-permanent dyes.
Does the developer contain any parabens or sulfates?
The product description does not specify the presence or absence of parabens or sulfates. Please contact customer service for detailed ingredient information.
How long does the developer last once opened?
Please contact customer service for information on shelf life after opening.

Oliver Vaughan –
The developer mixes smoothly with my hair dye and gives a very even color. I’ve used it for multiple lightening sessions and the results are consistent. The creamy texture makes application easy, especially on thick hair.
Keith Nash –
I appreciate the strong lifting power without adding unwanted color. It’s easier to apply than other developers I’ve tried. The color comes out bright and uniform, though I do need to adjust the amount based on hair thickness.
Samantha Wilkins –
Great for achieving a noticeable lift without damaging my hair. The formula is rich and spreads well. I’ve used it with both ammonia-free and ammonia-based dyes, and the results are reliable every time.