Sodium Macadamiaseedate
AKA “Macadamia seed oil salt”
Surfactant
Ingredient Facts
Sodium macadamiaseedate
AKA: Macadamia seed oil salt
Surfactant · Cleansing · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Not Clean
Sodium Macadamiaseedate is the sodium salt of the fatty acids derived from Macadamia Ternifolia Seed Oil
Effective at 15.0%
Family
Proteaceae (Protea family)
Plant Part
Seed
CAS #
-
See origin →
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Viscosity Controlling
Surfactant Emulsifying
Anti-Inflammatory
Antimicrobial
Fights Acne
Removes dirt and impurities
Mixes oil and water
Controls product thickness
Traditional Use
Modern derivative of macadamia seed oil, which has been used in traditional Hawaiian and Australian skincare for its emollient properties; the sodium salt form was developed for use in cosmetics to provide conditioning benefits.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Allergen Warning
⚠️ Tree Nut (Macadamia)
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
6e-05%
30.0%
0%100%
Effective Range
CIR reported use: 0.00006-5 | 0.0003-30
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR