Skin Conditioning

Prunus Armeniaca Kernel Oil Unsaponifiables

INCI: PRUNUS ARMENIACA KERNEL OIL UNSAPONIFIABLES

Reviewed by Kate · Last updated 14 Aug 2026

Also known as: Prunus Armeniaca Kernel Oil Unsaponifiables

A conditioning plant oil derived from apricot kernels, offering lightweight nourishment

Best For Skin Types

All, Dry, Sensitive, Mature

Addresses

Dryness, Hydration, Barrier repair

Usage Frequency

Daily

What Is Prunus Armeniaca Kernel Oil Unsaponifiables?

Prunus Armeniaca Kernel Oil Unsaponifiables are the unsaponifiable fraction of apricot kernel oil—the components that do not convert to soap when treated with alkali. This fraction is rich in phytosterols, squalene, and other lipid compounds naturally present in the apricot kernel.

In skincare formulations, it functions as a skin and hair conditioning agent. The unsaponifiables are preferred over the whole oil in some formulas because they tend to be lighter, absorb more readily, and integrate more easily into creams and emulsions without the heaviness of a full-fat oil.

How It Works

The unsaponifiable fraction works by integrating into the skin's lipid matrix—the fatty substances that cement skin cells together. Phytosterols and squalene are naturally occurring lipids that the skin recognises and utilises for barrier function and moisture retention.

Unlike heavier plant oils, unsaponifiables are absorbed relatively quickly, delivering conditioning benefits without leaving a thick or occlusive film. This makes them particularly useful in formulations designed for daily use across diverse skin types.

Clinical Evidence & References

Direct clinical studies specifically on apricot kernel oil unsaponifiables in skincare are limited. However, phytosterols and squalene—key components of this fraction—have established roles in skin barrier health and are recognised by dermatological research as beneficial conditioning agents.

The ingredient's safety and conditioning properties are well-documented in cosmetic ingredient literature, though evidence for specific therapeutic claims remains modest. It is regarded as a functional conditioning agent rather than an active treatment for particular skin concerns.

How to Use

This ingredient is typically formulated into creams, serums, and emulsions rather than used as a standalone oil. Apply products containing it to clean skin, morning or evening, according to the specific formulation's instructions. Because it is relatively lightweight, it layers well with other skincare steps and is unlikely to interfere with other active ingredients.

Safety & Precautions

Generally well-tolerated and suitable for most skin types. Individuals with documented sensitivity to apricot or tree nuts should exercise caution, though the unsaponifiable fraction is processed and unlikely to retain allergenic proteins.

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Part of a family

Prunus Armeniaca Kernel Oil Unsaponifiables is a variant of Prunus Armeniaca Fruit Water, the form you will most often see on an ingredients list.

A fruit-derived water that adds sensory appeal and subtle conditioning to skincare formulations

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