A magnesium salt of phosphoric acid, listed as a light stabiliser.
What it is
Magnesium phosphate is an inorganic magnesium salt of phosphoric acid, a white powder that is poorly soluble in water. CosIng lists it as a light stabiliser.
Where it is used
Appears on the ingredient lists of a small number of products.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
The INCI name does not show which magnesium phosphate or hydrate form was used.
Functions
- Light stabilizer
- Protecting the cosmetic product from deterioration effects of light.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

