| What is it? | Walnut oil is a liquid carrier oil pressed from the walnut. It is comprised mostly of linoleic and oleic fatty acids. |
| INCI | Juglans Regia Seed Oil |
| Appearance | Clear yellow oil |
| Usage rate | Up to 100% |
| Texture | Smooth, satiny oil |
| Scent | The versions I’ve used have had a very “typical-of-carrier-oils” smell—that is, not nutty in the least. Walnut oil does have the potential to smell nutty if the walnuts are roasted before pressing, so check with your supplier! |
| Absorbency Speed | Average |
| Approximate Melting Point | Liquid at room temperature |
| Solubility | Oil |
| Why do we use it in formulations? | Walnut oil is a lovely emollient and is popular for use in massage oil blends. It is said to be good for irritated/inflamed skin due to anti-inflammatory properties. |
| Do you need it? | No |
| Refined or unrefined? | I feel like the more important question for walnut oil is roasted or not—choose roasted if you want a nutty scent, and unroasted if you don’t want a nutty scent. |
| Strengths | Lovely plant-based emollient oil with the potential to add a beautiful nutty scent to your products. It is also recommended for irritated skin. |
| Weaknesses | Should be avoided by those with nut allergies. |
| Alternatives & Substitutions | I’d start with other nut oils, like sweet almond oil. For those avoiding nuts, try safflower oil or apricot kernel oil. |
| How to Work with It | Include walnut oil in the oil phase of your formulations. It can be hot or cold processed. |
| Storage & Shelf Life | Stored somewhere cool, dark, and dry, walnut oil should last up to two years. |
| Tips, Tricks, and Quirks | In aromatherapy walnut oil is said to help balance the nervous system. |
| Recommended starter amount | 100mL (3.3fl oz) |
| Where to Buy it | Buy it from an online DIY ingredient supplier or Amazon. |
