The hazelnut is the nut of the hazel and therefore includes any of the nuts deriving from species of the genus Corylus, especially the nuts of the species Corylus avellana. Hazelnut oil is liquid extracted from a hazelnut by a machine called a press. … But hazelnut oil can also be used as a skin care product. It’s loaded with skin-nourishing vitamins and essential fatty acids that help protect skin against sun damage, boost collagen production, and more.

DESCRIPTION
It is a light yellow in color, a light and thin viscosity and sweet nutty flavor.

COMPOSITION
Hazelnut Oil contains approximately 9% saturated fat, 74% oleic acid (an omega-9 fatty acid), 17% linoleic acid (an omega-6 essential fatty acid), and less than 1% alpha linolenic acid (an omega-3 essential fatty acid).

BENEFITS
Emollient – It is a nice moisturizer for the skin. This property is bestowed upon it by oleic acid (omega-9) which prevents moisture from evaporating from the surface of our skin. Anti-inflammatory – It reduces inflammation both topically and internally. Antioxidant – It prevents body’s cells from free radical damage. This helps to keep the skin smooth, elastic and healthy. Astringent – It mildly constricts the skin. This effect is beneficial for people with an oily skin. Scar Healing – Hazelnut oil can be used as base oil for healing scars.

Particularly good sources of other nutrients – Hazelnuts and other nuts are very healthy due to their high concentration of healthy fats and proteins. Hazelnuts are as well, including Vitamin E, Vitamin B, and oleic acid.

In the kitchen – Whilst it’s best to use it raw to take advantage of all of its nutrients, hazelnut oil can also be used in baking to flavor biscuits and cakes. Hazelnut oil can help the body to regenerate cells and acts as a stimulant to the bloodstream. It can help to boost energy and is therefore particularly recommended for athletes, to boost their body during a cold or flu or in times of heavy fatigue.

Care for Your Cat – Add a teaspoon of hazelnut oil in your cat’s food to assist avoid hairballs, in addition to encourage a shiny, healthy coat. Hazelnut oil will probably be more gentle on the cat’s system compared to petroleum-based anti-hairball lubricants. Additionally, it has the advantage of coming from a renewable resource, instead of oil through the ground.

For hair – It moisturizes all types of hair without weighing them down: hazelnut oil is used in application on lengths and ends. Leave to act for about thirty minutes before rinsing. Its regulating action of excess sebum makes it ideal for oily hair. An oil bath to be left overnight is the best solution, as long as you make sure you rinse the roots thoroughly.

Facial mask – To regulate excess oil: Prepare your mask with 1 tablespoon of hazelnut oil, 2 tablespoons of green clay and a little hot water to obtain the desired consistency. Apply and let stand, 30 minutes on the hair, 15 minutes on the face, then rinse.

Carrier oil – It is great for use when applying other, stronger essential oils that may be too harsh to apply directly to your skin; by mixing those
oils with a carrier oil, the essential oil will last longer and will be far less likely to irritate your skin.

It’s safe for sensitive skin – In most cases, hazelnut oil is safe for people with sensitive skin. Although it’s an astringent, it’s different from the alcohol-based astringents you often see in the skin care aisle. Alcohol-based astringents can be harsh and can dry out or irritate your skin. Hazelnut oil is a natural, alcohol-free astringent that doesn’t usually cause irritation.

It can be used as an astringent – Hazelnut oil contains tannins, which are powerful antioxidants. The tannins in hazelnut oil make it an astringent that can help dry oily skin, cleanse and shrink pores, and remove bacteria.

It’s hydrating – The high vitamin E and fatty acid content in hazelnut oil can help increase hydration in the outermost layer of the skin. By keeping skin hydrated, vitamin E also helps improve skin elasticity, making it look firm and supple.

It helps boosts collagen production – Collagen is an essential protein that holds your bones, organs, and tendons together. It gives your skin structure and elasticity. Our skin produces less collagen as we age, but vitamin E can help. It enables collagen production by reducing an enzyme that destroys collagen.

SOURCES :
https://www.aromaweb.com/vegetableoils/hazelnutoil.asp
https://www.healthline.com/health/beauty-skin-care/hazelnut-oil-for-skin
https://draxe.com/hazelnuts/
https://oilhealthbenefits.com/hazelnut-oil/