Ingredients

Macadamia Ternifolia Seed Oil

What macadamia seed oil does in skincare, how its oleic and palmitoleic acids affect its feel, and what nut-allergic shoppers should know.

Extremely safeIn 11 products we cover

Also known as Macadamia Oil

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Quick facts

INCI name
Macadamia Ternifolia Seed Oil
Origin
Plant-derived
Chemical class
Plant seed oil (triglycerides)
What it does in a formula
emollient, skin conditioning
Why it is in the formula
Macadamia seed oil softens the skin feel and brings a plant-derived oil phase to moisturizers and balms.

What it is

Obtained from the kernels of Macadamia ternifolia, macadamia seed oil is a plant-derived emollient used in balms, facial oils, and moisturizers. Its lipid profile features high levels of oleic acid and includes palmitoleic acid, alongside palmitic, stearic, and linoleic acids. Because cultivars, climate, and extraction techniques vary, the exact ratio of fatty acids differs from one batch to another.

Oleic and palmitoleic acids are monounsaturated fats. They contribute to the oil’s spreading and softening character, while a formula’s other oils and waxes determine its final weight. Like other oils, macadamia oil can oxidize over time, especially with exposure to air, heat, and light. Keep the container closed and follow storage and after-opening instructions. Replace the product if its smell or appearance changes in a way that suggests it has gone stale.

What it does

  • Softens skin. It works as an emollient, smoothing the feel of the surface.
  • Adds glide. Its oil phase helps a cream or balm spread and feel more cushiony.
  • Supports a richer texture. It can make a formula feel more nourishing without being a solid butter.

Who it suits

Macadamia seed oil may suit you if you enjoy plant oils and a soft, emollient finish. If you prefer a quick-drying gel, a rich oil blend may not be your favorite texture. There is no dependable comedogenic number that predicts how your skin will respond. Consider the full formula and use a product according to its directions.

Macadamia is a tree nut and can be a source of concern for people with a macadamia allergy. Refining generally removes much of the protein, but the level of refinement and remaining material can vary. Do not assume an ingredient or finished product is allergen-free based only on the word oil. If you have a known tree-nut allergy, discuss the product with your doctor and contact the manufacturer when you need details about sourcing or processing.

What to pair it with, and what not to

Macadamia oil can be blended with other emollients or included in a moisturizer with humectants. There is no special active to pair with it. Store oil-containing products as directed and pay attention to changes in smell or texture.

Skin Realist check: An ingredient can have a lovely origin story and still be judged by whether you like the finish.

Quick picks with Macadamia Ternifolia Seed Oil

Picked from label facts only. We haven't tested these products.

All 11 products with Macadamia Ternifolia Seed Oil

Body Creams, Butters & Body Oils (4)

Daily Moisturizers & Water Gel Creams (3)

Face Oils & Treatment Oils (2)

Sheet, Hydrogel & Clay Masks (1)

Hydrating Serums, Essences & Ampoules (1)

Common questions

What does macadamia seed oil do for skin?

It is an emollient plant oil that can soften skin and add slip to creams and oils. Its feel depends on the amount used and the other ingredients in the formula.

What fatty acids are in macadamia seed oil?

It is typically rich in oleic acid and also contains palmitoleic acid, with smaller amounts of other fatty acids. The exact mix can vary by cultivar and processing.

Can people with a macadamia allergy use macadamia oil?

Macadamia is a tree nut and its oil may be a concern for someone with a known allergy. Refining can remove much of the protein, but you should not assume every oil or product is allergen-free; ask your doctor about your own allergy.

Does macadamia oil clog pores?

Comedogenic ratings are unreliable and cannot predict how every product will affect an individual. The formula and your own experience are more useful than a single number.

Sources