Humectant

Prunus Persica Kernel Extract

INCI: PRUNUS PERSICA KERNEL EXTRACT

Reviewed by Daisy · Last updated 14 Aug 2026

A plant-derived moisturiser extracted from peach kernel oil

Best For Skin Types

All, Dry, Sensitive

Addresses

Dryness, Hydration

Usage Frequency

Daily

What Is Prunus Persica Kernel Extract?

Prunus Persica Kernel Extract is derived from the kernel of the peach fruit and is rich in fatty acids and natural oils. It functions as a skin conditioning and moisturising ingredient, working to soften and hydrate the outer layers of the skin.

This ingredient is used sparingly in formulations, appearing in roughly 0.1% of skincare products. It offers a gentler, plant-based alternative to some synthetic moisturisers, though its efficacy profile is modest compared to other common humectants and emollients.

How It Works

Peach kernel extract works primarily as an emollient, meaning it sits on the skin's surface and helps to trap water, preventing transepidermal water loss. The fatty acid composition allows it to soften the stratum corneum (the outermost skin layer) and improve the overall feel of the skin.

As a natural conditioning agent, it does not penetrate deeply into the dermis; rather, it supports skin barrier function by maintaining surface hydration and reducing dryness-related roughness.

Clinical Evidence & References

Research specifically evaluating peach kernel extract in skincare formulations is limited. Much of the ingredient's use rests on traditional knowledge of plant oils and general understanding of how emollients function in skincare.

In principle, the fatty acids present should support skin hydration and barrier health, but robust clinical trials comparing this extract to established moisturisers are lacking. It is best viewed as a supplementary conditioning ingredient rather than a primary active.

How to Use

This ingredient is typically found in creams, lotions, and serums rather than lightweight formulations. It works well as part of a broader moisturising routine and can be used twice daily if incorporated into your morning and evening regimen. Pair it with other hydrating ingredients like glycerin or hyaluronic acid for optimal moisture support.

Safety & Precautions

Generally well-tolerated and considered safe for cosmetic use. Those with tree nut sensitivities should patch-test, as peach is botanically a stone fruit; however, allergic reactions remain uncommon.

Frequently Asked Questions

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Part of a family

Prunus Persica Kernel Extract is a variant of Prunus Persica (Peach) Leaf Extract, the form you will most often see on an ingredients list.

Extract from the leaves of the domestic peach | Has antioxidant properties

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