Ingredient
Potassium Cetyl Phosphate
An emulsifier used widely in sunscreens to hold the filters in place.
What it is there to do
Emulsifier
Holds oil and water together so they do not separate.
What we don't know
- Where it comes from — plant, mineral, synthetic — isn't recorded.
- No published rule in our reference names it. That is about the rules, not safety.
- How much of it is used in any particular product. We hold no concentrations at all.
This is information about an ingredient, not medical advice, and not a judgement about any product that contains it. Back to the reference.