Pure Hazelnut Oil
How much do you know about hazelnut oil?
Hazelnut oil is a natural vegetable oil extracted from hazelnuts, possessing a light and unique nutty aroma. Its core components are high levels of oleic acid (approximately 68-90%) and linoleic acid (approximately 7-15%), with a total unsaturated fatty acid content of 78%-93.5%. Its molecular structure is similar to human sebum, resulting in a light texture and rapid penetration, allowing it to be quickly absorbed by the skin without clogging pores. As a high-quality skincare oil, it is especially suitable for dry and sensitive skin, effectively moisturizing and improving skin problems; it is also frequently used as a base oil in aromatherapy, providing a refreshing and comfortable massage experience.
Historically, hazelnuts have long been considered an important source of nutrition due to their rich content of oils, proteins, and vitamins. Today, in the field of skincare, hazelnut oil is an ideal oil for care and massage, especially suitable for dry and sensitive skin. It moisturizes while enhancing skin comfort, and its high oleic acid content also gives it good stability.
The Multiple Values of Hazelnut Oil
Hazelnut oil is a natural vegetable oil derived from European hazelnuts. Thanks to its unique fatty acid composition and rich active ingredients, it demonstrates multiple values in skincare, food, and health.
I. Skincare and Beauty
Hazelnut oil has a light texture, is easily absorbed, and is non-comedogenic, making it suitable for all skin types. Its skincare benefits are mainly reflected in the following four aspects:
Regulating Oil Production and Refining Pores
Core Mechanism: Rich in oleic acid (Ω-9, content reaching 71-87%), its structure is similar to human sebum, effectively regulating sebaceous gland secretion and helping to balance skin oil and water.
Astringent Effect: The tannins it contains have astringent properties, absorbing excess oil and shrinking pores, making the skin appear firmer.
Suitable Skin Types: Particularly suitable for oily, combination, and acne-prone skin, helping to reduce the risk of blackheads and acne.
Deep Moisturizing and Strengthening the Skin Barrier
Highly Moisturizing: Rich in fatty acids such as oleic acid and linoleic acid (Ω-6), it deeply penetrates and moisturizes the skin without leaving a greasy feeling. Barrier Repair: By replenishing lipids, it helps rebuild and strengthen the skin barrier, reducing moisture loss and soothing dryness and sensitivity.
Antioxidant and Anti-Aging
Key Ingredients: Rich in antioxidants such as vitamin E and phytosterols, it neutralizes free radicals and reduces oxidative damage.
Anti-Aging Effects: Helps reduce fine lines and wrinkles, protects collagen, improves skin elasticity, and helps defend against photoaging caused by UV rays.
Soothing Repair and Improved Elasticity
Anti-inflammatory and Soothing: Can help reduce skin redness and irritation caused by eczema, acne, etc.
Enhanced Resilience: By strengthening the barrier function, it improves the skin's resistance to environmental stress, maintaining healthy and supple skin.
In addition, hazelnut oil is also commonly used in hair care products (nourishing the scalp, improving hair quality) and as a massage base oil to promote circulation and soften the skin.
II. Food and Health
Cold-pressed hazelnut oil not only has a unique flavor but is also a nutritious and healthy edible oil:
Beneficial for Cardiovascular Health: High oleic acid content helps lower "bad" cholesterol (LDL) and maintain "good" cholesterol (HDL). Its rich magnesium content regulates heart rhythm, and flavonoids and vitamin E provide synergistic antioxidant protection. Long-term moderate consumption helps reduce the risk of cardiovascular disease.
Supports Bones and Muscles: The manganese content helps improve bone density, while magnesium participates in muscle contraction and relaxation, relieving tension and cramps, and supporting bone health.
Promotes Digestion and Metabolism: Dietary fiber helps promote intestinal health and detoxification, while manganese and vitamin B6 support the normal metabolism of proteins and carbohydrates and nervous system function.
Stability and Durability: High vitamin E content makes it naturally stable and resistant to oxidation and spoilage.
Hazelnut oil is truly a versatile ingredient, acting as a balancing oil, moisturizer, and antioxidant in skincare, and internally as a nutritious oil that promotes cardiovascular, bone, and overall metabolic health. It is a prime example of an ingredient that connects natural skincare with an organic lifestyle.
Note: Individuals with nut allergies should avoid using this product.
Common Methods for Extracting Vegetable Oils
Pressing Method
Pressing is a physical extraction method that directly extracts oil from raw materials using pressure. Compared to other methods, the oil extracted this way retains the raw material's unique aroma to the greatest extent, and has the advantages of being environmentally friendly and free from irritating solvents that could affect the skin. Its disadvantages include high demands on the raw materials, a low oil yield, and a less favorable cost-effectiveness.
Extraction Method
Extraction falls under the category of solvent extraction, utilizing the principle of "like dissolves like." It uses the principle of high solubility between similar structures to extract substances. Soxhlet extraction is suitable for extracting oily compounds from plants. Soxhlet extraction is applicable to solid-liquid extraction; its principle is to use solvent reflux and siphon extraction to extract vegetable oil from hazelnut kernels. It has high extraction efficiency and is the preferred standard method for grain and oil analysis in my country.
Ultrasonic Extraction Method
Ultrasonic-assisted extraction is a commonly used method. The principle of ultrasonic extraction is that the cavitation effect of ultrasound destroys cell membranes, accelerating the leaching rate of vegetable oil. The continuous vibration of the ultrasound also accelerates the precipitation of fatty acids, and the thermal effect of the ultrasound acts as a water bath on the raw materials, shortening the extraction time. Because ultrasonic extraction acts directly on the inside of the cells, it has high extraction efficiency, and is therefore frequently used in the extraction of vegetable oils.
