Common Name(s): Disodium phenylene bis-isostearylphosphate,phenylene diisostearyl bisphosphate sodium salt
DESCRIPTION
What It Does: Helps oil and water blend in formulas with good compatibility with uv filter actives.
Why It's Used: Specialty anionic phosphate ester emulsifier using a phenylene bridge linking two isostearyl phosphate units; aromatic spacer provides uv filter compatibility.
How It Works: Disodium phosphate groups provide anionic emulsification; phenylene bridge provides rigidity and uv filter compatibility; isostearyl chains provide branched lipophilic anchoring (non-crystallizing).
Typically Found In: Sunscreen formulations,specialty emulsion systems
TECHNICAL DETAILS
Primary Category: Functional ingredient – emulsifier
Secondary Functions: Surfactant,uv filter compatible
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5%–3%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Synthetic specialty phosphate ester.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – low
Sensitivity Concerns: Generally well tolerated.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Good safety profile. ewg score: 1–2.
Works Well With: Uv filters,other anionic emulsifiers
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Phenylene-bridged bisphosphate emulsifiers provide unique geometry for uv filter emulsification systems; the aromatic ring enhances compatibility with chemical uv filters via pi-stacking interactions.
Last Verified: 2026-03-28
Primary Sources: Cosing database,inci dictionary