From the manufacturer:

MAKE-UP MIXER is a very important professional makeup because it performs several functions.

• It is primarily a makeup base that prepares the skin for the different products and especially the pigmented cream makeup.
• This is a diluent. Mixed with a cream foundation, MAKE-UP MAT or otherwise, it will give transparency depending on the dosage you want. You can then manage the coverage as needed.
• If necessary, it is an excellent cleanser.
• It is a focal point when you want to mix two or more make-up cream.
• Clear on the skin.