Common Name(s): Ppg-15 se,skin barrier emollient,dry touch refatting
CAS Number: 25231-21-4
DESCRIPTION
What It Does: Provides dry-touch protective barrier from ppg-15 stearyl ether.
Why It's Used: Dry-touch barrier emollient โ ppg-15 stearyl ether occupies the emollient space between very dry esters (too little protection) and heavy oils (too greasy) for body care requiring barrier protection without tactile heaviness.
How It Works: Propylene glycol (ppg-15) + stearyl alcohol ether. dry-touch: ppg chain provides non-tacky character. protective film: stearyl component provides barrier. sun care: excellent uv filter compatibility. body care: protective moisturising. non-greasy despite barrier function.
Typically Found In: Body care protective emollient,sun care
TECHNICAL DETAILS
Primary Category: Functional ingredient โ emollient
Secondary Functions: Barrier sealing,softening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%โ20%
SOURCING & ETHICS
Vegan Status: Yes โ synthetic
Halal Status: Yes
Source Notes: Plant-derived, synthetic or animal-derived. verify source.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 1/5 โ low; formulation-dependent
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Ppg-15 stearyl ether dry-touch from ppg chain geometry: polyoxypropylene chains have methyl side groups that prevent tight molecular packing, creating a more open, less tacky film geometry vs polyoxyethylene chains (no side groups, tight packing โ tacky feel). the propylene vs ethylene glycol polymer backbone choice determines whether the ether film is tacky (peg-based) or dry-touch (ppg-based) โ a polymer side-group engineering principle controlling sensory properties.
Last Verified: Cosing database,ppg-15 stearyl ether technical literature
Primary Sources: 2026-03-12