Evening Primrose Seed Oil

Shaanxi Inhealth Nature Industry Co., Ltd. is one of the most experienced manufacturers and suppliers of evening primrose seed oil in China, featured by quality products and good price. Welcome to wholesale bulk high-grade evening primrose seed oil from our factory. Contact us for free sample.

Evening Primrose Seed Oil is derived from the seeds of the Oenothera biennis plant, a biennial herb native to North America but now found throughout Europe and parts of Asia. This plant is characterized by its yellow flowers that bloom in the evening and close during the day, hence the name "evening primrose".

 Product Features and Composition

Evening primrose oil is valued for its rich fatty acid profile, particularly:

a. Gamma-linolenic Acid (GLA): An omega-6 fatty acid comprising approximately 8%–10% of the oil.

b. Linoleic Acid (LA): An essential omega-6 fatty acid making up about 60%–80% of the oil.

These fatty acids are attributed to the oil's potential health benefits. To maintain its nutritional value, cold-pressed techniques are usually used to extract the oil.

 Advantages of Inhealth Nature as Your Evening Primrose Oil Manufacturer

a. Commitment to Quality and Purity: We specialize in cold-pressed extraction for our evening primrose oil. This low-temperature process ensures the preservation of delicate Gamma-linolenic Acid (GLA) and Linoleic Acid (LA) without the use of chemical solvents, resulting in a pure, high-potency oil.

b. Product Integrity and Transparency: We maintain strict quality control standards from seed to supplement. Our products are subject to rigorous testing to verify purity and potency. We believe in transparent labeling, which can ensure that you know exactly what is in your product.

c. Expertise in Nutritional Supplements: With a focus on nutritional wellness, we use our expertise to deliver evening primrose oil that meets the expectations of consumers seeking high-quality dietary supplements and topical products for personal well-being.

 Product Applications

Evening primrose oil is commonly used in:

a. Dietary Supplements: Often available in softgel or capsule form for oral consumption.

c. Topical Products: Included in creams, lotions, and serums for skin moisturization and care.

Evening Primrose Seed Oil is valued for its unique nutritional profile, primarily its high content of gamma-linolenic acid (GLA), an omega-6 fatty acid. Its potential benefits are as follows:

 Skin Health and Hydration

The GLA in primrose oil is believed to play a role in supporting the skin's structure and function. It preserves the skin's natural barriers against moisture loss. This makes it a popular ingredient of topical skincare products and dietary supplements for skin health since it can support overall skin hydration, resilience, and appearance.

 Comfort during the Menstrual Cycle

Some individuals find that nutritional support with evening primrose oil can manage general discomfort associated with the menstrual cycle. The GLA may influence the body's response to routine cyclical changes, potentially promoting a sense of balance and well-being during this time.

 General Inflammatory Response

As a source of beneficial fatty acids, evening primrose oil may contribute to the body's normal inflammatory response. It can play a role in overall comfort and joint function by supporting a healthy balance.

 Hair and Nail Strength

The fatty acids in evening primrose oil are fundamental building blocks for healthy cells. Nutritional support with EPO may help strengthen hair follicles and support the condition of the nail bed, contributing to the appearance of stronger, healthier-looking hair and nails.

 Cardiovascular Support

Linoleic acid (LA) and gamma-linolenic acid (GLA) play a role in supporting cardiovascular function. These essential fatty acids are involved in the body's natural processes for maintaining healthy cholesterol levels and supporting normal blood pressure, which are two important factors for heart health. Evening primrose oil can be part of a nutritional approach to maintaining circulatory well-being by contributing to a healthy inflammatory response within the vascular system.

 Overall Well-Being

The essential fatty acids in evening primrose oil, which the body cannot produce on its own, are crucial for numerous foundational bodily functions. Incorporating EPO as a supplement can help support a balanced diet and contribute to one's overall nutritional wellness.

We use the following cold-pressing process to produce evening primrose oil, efficiently extracting the oil while maximizing the preservation of its natural nutrients (such as gamma-linolenic acid).

 Raw Material Pretreatment

a. Screening & Cleaning: Vibrating screens and gravity separators remove all impurities such as dust, gravel, and straw to ensure raw material purity.

b. Low-Temperature Drying: Under strict control at temperatures below 50°C, the seed moisture content is reduced from 10-12% to approximately 6%, providing optimal conditions for subsequent pressing.

 Two-Stage Cold Pressing Extraction

a. First Cold Press: The pretreated seeds are fed into a screw extrusion press, where they are pressed at low temperatures (<75°C) and low pressure (~3.0 MPa). Approximately 60-70% of the oil is extracted. The crude oil at this stage has a high gamma-linolenic acid content (≥9.5%).

b. Second Cold Press: The cake from the primary pressing is subjected to a secondary pressing process, using adjusted lower temperatures and pressures to further extract residual oil, significantly increasing the overall oil yield.

 Oil Purification & Stabilization

a. Low-Temperature Filtration: Under nitrogen protection, the crude oil is filtered using a plate and frame filter or multi-layer screen to remove solid particles.

b. Nitrogen Packaging: The filtered oil is temporarily stored under nitrogen and then dispensed into dark glass bottles or light-proof containers. The acid value is strictly controlled to ensure freshness and stability.

At Inhealth Nature, our quality control process for evening primrose oil is integrated into every production stage, from seed to ship. Our multi-stage verification system ensures purity, potency, and safety in every batch.

 Raw Material Qualification & Supplier Approval

Before processing begins, the quality of our oil is determined by the quality of our seeds.

a. Seed Selection: We source Oenothera biennis seeds from approved cultivators known for optimal Gamma-Linolenic Acid (GLA) potential.

b. Rigorous Supplier Audits: Our partner farms are subject to audits to verify adherence to Good Agricultural Practices (GAP), ensuring sustainable and clean cultivation without using prohibited pesticides or herbicides.

c. Certificate of Analysis (CoA) Review: Each incoming seed batch is accompanied by a supplier CoA. We conduct identity confirmation and screen for initial quality markers before accepting the raw material into our facility.

 Controlled Low-Temperature Processing

We employ a mechanical extraction method that preserves the oil's delicate nutritional profile.

a. Cold-Press Extraction: Our entire extraction process is carefully controlled to remain below 60°C (140°F). This prevents the degradation of heat-sensitive compounds like GLA and preserves the oil's natural state.

b. Oxygen-Light Minimization: Processing steps, particularly post-press filtration, are conducted under an inert nitrogen atmosphere. This prevents oxidative damage from the moment the oil is expressed, protecting its freshness and stability.

 In-Process Testing & Standardization

Critical control points are monitored throughout manufacturing to ensure batch consistency.

a. Moisture Content Check: Seeds are dried to a precise moisture level (~6%) before pressing to maximize oil yield and prevent microbial growth.

b. Pressure & Temperature Monitoring: The pressure (MPa) and temperature of our mechanical presses are continuously logged to ensure they remain within our strict cold-processing parameters.

c. Standardization for Potency: We blend oil from multiple presses as needed to standardize the final GLA content, ensuring every batch meets our labeled potency claim consistently.

 Comprehensive Final Product Analysis

Every single finished batch of oil is held in quarantine until it passes a full battery of tests performed in our in-house laboratories or by accredited third-party partners.

A. Identity and Potency (GC Testing): Verified via Gas Chromatography to confirm the presence and concentration of key fatty acids, including Gamma-Linolenic Acid (GLA), Linoleic Acid, and Oleic Acid.

B. Purity and Safety

a. Heavy Metals: Tested for Arsenic, Cadmium, Lead, and Mercury to levels meeting stringent regulatory requirements.

b. Microbiological Safety: Analyzed for Total Aerobic Microbial Count, Yeast, Mold, and specified pathogens to ensure consumer safety.

c. Pesticide Residue Screening: Comprehensive multi-panel screening to verify the absence of hundreds of potential pesticide residues.

C. Oxidative Stability and Freshness

a. Peroxide Value: Measures primary oxidation products; must be within a low, strict range to confirm freshness.

b. Acid Value: Measures free fatty acids, indicating the hydrolytic breakdown of the oil; kept at a minimal level.

c. Anisidine Value: Measures secondary oxidation products, ensuring the oil has not been compromised over time.

Our factory operates in a controlled environment, where scientific precision meets sustainable methods to yield high-purity bioactive compounds. Every phase of the process, beginning with raw material sourcing and extending through final product formulation, maintains the full integrity of botanical ingredients.

1. Precision Processing: Customized extraction methods (water, ethanol, or solvent-based) are tailored to each plant's chemistry, maximizing yield without compromising potency.

2. Quality Assurance: In-house labs conduct rigorous testing for contaminants, heavy metals, and active compound concentration, aligning with international standards like USP and EP.

3. Flexible Capabilities: The facility accommodates diverse client needs, from small-batch extracts to large-scale commercial production.

4. Sustainability Focus: Waste reduction systems, energy-efficient machinery, and solvent recovery processes show our commitment to eco-conscious manufacturing.

As an experienced and skilled manufacturer and supplier, we pledge to produce and offer our global customers superior herbal extracts (powder, oil, liquid, etc.) that are safe and have a high bioavailability. Due to our several international certifications, including ISO, FSSC, FDA, Kosher, Halal, FSMA, and others, we can ensure that the final herbal extracts we sell adhere to strict standards and regulations regarding potency, quality, and purity.

Because of our complete compliance with the aforementioned international certifications, our clients worldwide can be certain of the safety, effectiveness, and high bioavailability of the herbal extracts we offer. When clients seek to collaborate with an outstanding and dependable provider of premium herbal extracts, our commitment to the aforementioned certifications offers them peace of mind.

The oil sample in the picture is only for your reference and can be substituted with any oil based on your needs. The packaging form can be customized according to your requirements.

Here are the product applications of Evening Primrose Seed Oil in dietary supplements and topical products:

 Dietary Supplements

a. General Wellness Supplements: Evening primrose oil is commonly encapsulated and marketed as a dietary supplement for overall health maintenance, leveraging its high content of omega-6 fatty acids, particularly gamma-linolenic acid (GLA).

b. Women's Health Formulations: It is frequently included in supplements targeting women's health, such as those for hormonal balance, premenstrual comfort, and menopausal support.

c. Skin Health Supplements: Some oral supplements promote evening primrose oil for enhancing skin hydration, barrier function, and overall complexion, based on its fatty acid profile.

d. Combination Formulas: Evening primrose oil is often blended with other ingredients like fish oil, vitamins (e.g., vitamin E), or herbal extracts to create synergistic wellness products.

 Topical Products

a. Moisturizers and Creams: Evening primrose oil is used in facial and body moisturizers for its emollient properties, helping to soften skin and reduce moisture loss.

b. Cleansing Products: It is incorporated into cleansers and cleansing creams due to its soothing and anti-inflammatory properties, which help maintain skin hydration during cleansing.

c. Serums and Treatment Oils: Lightweight serums and facial oils often include evening primrose oil for its potential to improve skin tone, texture, and barrier function.

d. Hair Care Products: It is found in hair oils, masks, and conditioners to hydrate and repair hair proteins.

We have specialized in evening primrose oil for many years. We supply products at competitive prices, and our products are of the highest quality and undergo strict and independent testing to ensure that they are safe for consumption around the world.

If you have any concerns or questions, please feel free to contact us in the following ways:

Sales: Shaw Luo

Office: +86-29-88387688

Mobile/Whatsapp: +86-18991583980

Email: shaw@inhealthnature.com

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