Common Name(s): Avocadamide dea,fatty acid alkanolamide,foam booster viscosity builder

CAS Number: N/a

DESCRIPTION

What It Does: Boosts foam quality, stabilises foam lamellae, builds viscosity in surfactant systems, and reduces surface tension in cleansing formulations.

Why It's Used: Dea alkanolamides face n-nitrosamine formation concerns (eu restriction from leave-on use) — formulators transition to mea or mipa equivalents for cleaner regulatory positioning.

How It Works: Amide nitrogen lone pair inserts at foam bubble air-water interface alongside the fatty acid chain — the amide geometry stabilises foam lamellae through the gibbs-marangoni effect reducing drainage. viscosity building in surfactant systems arises from rod micelle formation above critical packing parameter.

Typically Found In: Shampoos,body wash,cleansers

TECHNICAL DETAILS

Primary Category: Active ingredient – cosmetic active

Secondary Functions: Skin conditioning

Application Areas:

Typical Concentration Range: 1%–5%

SOURCING & ETHICS

Vegan Status: Conditional - supplier confirmation required

Halal Status: Unverified - supplier confirmation required

Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier. [audit 2026-07-29 rev2: the record's own source_notes does not assert a non-animal origin, or instructs the reader to verify with the supplier; "yes" asserts knowledge the record does not hold. determination requires shariah-panel sign-off.]

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Well-tolerated by most skin types.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Good safety profile at recommended concentrations. ewg score: 1–2.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Eu and ca prop 65 restrict dea in leave-on products due to ndea formation; only rinse-off use is currently accepted.

Last Verified: 2026-03-12

Primary Sources: Cosing database,avocadamide dea alkanolamide review