Science
Mechanism of Action
This extract functions primarily through its high concentration of monounsaturated fatty acids, particularly oleic and palmitoleic acids, alongside beneficial vitamin E and polyphenols. Palmitoleic acid, which closely resembles human sebum, enables swift absorption without a greasy residue, aids in skin healing, and calms inflammation. Its emollient properties enhance skin elasticity and suppleness, while its antioxidant constituents actively protect the skin from oxidative stress and environmental damage.
Research
Clinical Evidence
Medium confidence15%
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The oil is characterized by high oxidative stability due to its low polyunsaturated fat content. It maintains a pH range of 6.0-7.0, contributes to stabilizing fat-rich formulations, and offers excellent spreadability.
Conflicts
- May not be suitable for individuals with nut allergies.
- May not be suitable for individuals prone to malassezia folliculitis (fungal-acne).
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has assessed Macadamia Ternifolia Seed Oil, alongside related macadamia oils, concluding it is safe for cosmetic use based on a history of safe food use and data indicating low dermal irritation and sensitization potential. While considered non-toxic with no widely reported adverse effects in personal care products, a patch test is still recommended for individuals with particularly sensitive skin. Due to potential tree nut allergies, FDA regulations require specific labeling for macadamia nuts in food products.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Macadamia Ternifolia Seed Extract is a valuable emollient, offering substantial hydrating, barrier-supporting, and antioxidant benefits across all skin types with a low risk of irritation or comedogenicity.
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