Cetearyl Phosphate
What is Cetearyl Phosphate?
Cetearyl Phosphate is a synthetic anionic surfactant formed by esterifying phosphoric acid with cetearyl alcohol, a blend of cetyl (C16) and stearyl (C18) alcohols derived from natural fats or vegetable oils. In cosmetics, it belongs to the emulsifying agent category, primarily used in oil-in-water emulsion formulations like moisturizers, lotions, and creams. It functions by reducing surface tension between oil and water phases, creating stable mixtures that prevent separation. Its phosphate groups provide negative charge for effective emulsification, often paired with co-emulsifiers like cetearyl alcohol for enhanced texture and spreadability. Additionally, it contributes to skin conditioning by forming a protective layer that supports moisture retention on the skin surface.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Supports smooth emulsion in products for even application.
Helps maintain skin's softness and flexibility.
Promotes product stability without heaviness.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| People seeking stable, non-greasy moisturizers. | Those with known sensitivity to phosphate esters. |
| Individuals with normal to dry skin preferring conditioning formulas. | People preferring phosphate-free formulations. |
| Users of daily creams and lotions for hydration support. | Individuals experiencing rare allergic reactions to emulsifiers. |
Safety Notes
- Rated low hazard by safety assessments.
- Non-comedogenic, unlikely to clog pores.
Frequently Asked Questions about Cetearyl Phosphate
What does Cetearyl Phosphate do in products?
It stabilizes emulsions and conditions skin for softness.
Is it safe for daily use?
Safety reviews indicate low concern for typical cosmetic concentrations.
Does it clog pores?
No, it has a non-comedogenic rating.