Juglans Regia (Walnut) Seed Oil
A walnut seed oil with unsaturated fatty acids. It nourishes and softens skin. Well tolerated.
Evidence by route
Topical application
A nourishing plant oil. Safe.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Walnut seed oil is pressed from the seeds of Juglans regia. INCI: Juglans Regia (Walnut) Seed Oil. It is a plant oil rich in linoleic and linolenic acids and vitamin E. In a formula it works as an emollient and barrier-support component: it softens skin, reduces water loss, and gives a nourished feel. The linoleic part is related to barrier lipids, so the oil makes sense for dry skin. Its standalone clinical effect is modest. Allergenicity. This is a nut oil, and with a confirmed nut allergy it is treated with caution, although refined grades contain little allergenic protein. Pregnancy safety: topically systemically negligible. Tolerance. Irritation potential is low.
Frequently asked questions
Is Juglans Regia (Walnut) Seed Oil safe during pregnancy?
Juglans Regia (Walnut) Seed Oil is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Juglans Regia (Walnut) Seed Oil for?
Juglans Regia (Walnut) Seed Oil suits: normal, dry, combination, oily, sensitive.
What is Juglans Regia (Walnut) Seed Oil and what does it do in cosmetics?
A walnut seed oil with unsaturated fatty acids.
Is Juglans Regia (Walnut) Seed Oil comedogenic?
On the Fulton scale 2/5 – low comedogenicity. For acne-prone skin, a rating of 3 or higher suggests choosing an alternative.
What's the INCI name for Juglans Regia (Walnut) Seed Oil?
The INCI name is Juglans Regia Seed Oil. It may also appear as: Walnut Seed Oil.
See Juglans Regia (Walnut) Seed Oil in a product composition right on the store page
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