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Shaanxi Kaishi Biotechnology Co., Ltd
Product Description
Evening Primrose Oil Powder is a powdered nutritional ingredient made by converting evening primrose oil, obtained from the seeds of Oenothera biennis, into a format suitable for dry blending and supplement manufacturing. It is valued as a source of gamma-linolenic acid (GLA), an omega-6 fatty acid, for capsules, tablets, sachets, and customized nutritional powder formulations.
Evening Primrose Oil Powder combines evening primrose seed oil with a suitable carrier or encapsulation system to improve its handling in dry formulations. Unlike conventional liquid evening primrose oil, the powdered format can simplify weighing, blending, and incorporation into selected solid dosage forms.
For B2B buyers, the most important purchasing considerations are oil loading, GLA concentration, carrier composition, moisture content, oxidation stability, and dispersibility. These parameters vary by manufacturing process and commercial grade, so a useful procurement specification should define the active oil fraction and its analytical basis rather than relying on the product name alone.
Evening primrose oil is a vegetable oil extracted from the seeds of Oenothera biennis. It contains linoleic acid and gamma-linolenic acid, with the actual fatty-acid profile depending on the seed source, extraction process, refining, and analytical specification. GLA is the characteristic fatty acid commonly used to standardize evening primrose oil for nutritional applications.
Evening Primrose Oil Powder is not a single pure chemical compound. It is generally a formulated ingredient containing evening primrose oil and a carrier or encapsulating material. Consequently, it does not have one universal molecular formula, molecular weight, or CAS number that describes every commercial powder grade. The oil component and carrier system should be identified separately in the technical documentation.
Evening Primrose Oil Powder is used in nutritional supplement formulations that require evening primrose oil in a dry, blendable format. The GLA contribution per serving should be calculated from the verified oil loading and the measured GLA concentration of the oil component.
The powder can be considered for selected capsule and tablet formulations when its oil loading, flow properties, compression behavior, and carrier system are compatible with the manufacturing process. Formulators should evaluate blend uniformity, oil migration, and stability during processing and storage.
Powdered evening primrose oil can be incorporated into sachets, dry blends, and customized nutritional powders. The choice of carrier, dispersibility, sensory profile, and moisture control should be assessed according to the intended product format and packaging conditions.
For contract supplement projects, Evening Primrose Oil Powder can be evaluated as an ingredient for customized capsules, tablets, sachets, and other suitable formats. Ingredient selection should reflect the target GLA level, serving size, carrier requirements, stability expectations, and labeling rules in the intended market.
| Item | Specification |
|---|---|
| Product Name | Evening Primrose Oil Powder |
| Ingredient Category | Nutritional Ingredients; Specialty Oils and Fatty Acids |
| Botanical Source | Oenothera biennis seed oil |
| Oil Component CAS Number | 90028-66-3 is commonly associated with evening primrose oil; confirm the applicable identity and registry designation for the supplied material |
| Molecular Formula | Not applicable to the complete powder; the oil is a mixture of triglycerides and the powder includes a carrier or encapsulating system |
| Molecular Weight | No single molecular weight applies to the complete powder or its mixed triglyceride oil component |
| Typical Appearance | Off-white to pale yellow powder, depending on oil loading and carrier system |
| Standardization Marker | Gamma-linolenic acid (GLA), commonly specified as a percentage of the oil component |
| Typical GLA Content of Oil | Often approximately 8% to 10% of the oil component; verify the grade-specific fatty-acid profile |
| Oil Loading | Grade-dependent; commonly offered in different oil-loading levels, with the exact percentage defined in the product specification |
| Carrier or Encapsulating System | May include suitable carbohydrates, modified starches, or other food-grade carrier materials depending on the commercial grade |
| Identification and Assay | Fatty-acid profile and GLA content can be assessed using validated gas chromatography methods, commonly GC-FID following appropriate sample preparation |
| Moisture | Controlled according to the agreed product specification |
| Oxidation Quality | Peroxide value and other relevant oxidation indicators controlled according to the applicable oil or finished-powder specification |
| Particle Size | Customizable according to blending, flow, and dosage-form requirements |
| Heavy Metals | Controlled against the applicable ingredient specification and destination-market requirements |
| Microbiological Quality | Tested according to the intended nutritional application and applicable requirements |
| Standard Shelf Life | Commonly 18 to 24 months for appropriately manufactured and packaged powdered oil ingredients, subject to product-specific stability data |
| Storage Conditions | Store in a tightly sealed, moisture-resistant package in a cool, dry place away from direct sunlight, oxygen exposure, and excessive heat |
| Standard Packaging | 1 kg or 5 kg barrier foil bags and 20 kg to 25 kg drums or cartons, depending on the packaging system; customized pack sizes are available |
| Documentation | COA, TDS, and SDS; fatty-acid profile and relevant oxidation test results should be included or provided where applicable |
| Applications | Dietary supplements, capsules, tablets, sachets, dry nutritional blends, and customized powdered formulations |
Specification note: Evening Primrose Oil Powder is a formulated ingredient, so GLA content, oil loading, carrier composition, moisture, and oxidation limits depend on the commercial grade. GLA percentages must be interpreted against the stated basis, such as the oil component or the complete powder. Final acceptance limits and shelf life should be supported by the applicable product specification, batch COA, and stability data.
The most important specification decision for Evening Primrose Oil Powder is how much GLA the finished ingredient actually delivers. A powder may contain evening primrose oil standardized for GLA, but the carrier dilutes the oil fraction in the complete powder. Therefore, a GLA percentage reported for the oil itself is not equivalent to the GLA percentage of the whole powder.
| Specification Factor | Why It Matters | What Buyers Should Verify |
|---|---|---|
| GLA Content of the Oil | Defines the concentration of the characteristic fatty acid within the oil component. | Fatty-acid profile, analytical method, and whether the result is reported as a percentage of total fatty acids or oil. |
| Oil Loading in the Powder | Determines how much evening primrose oil is present in each gram of powder. | Oil percentage in the complete powder and the basis used to calculate it. |
| GLA Delivered per Gram | Connects the raw-material specification to the intended serving size and label declaration. | Calculated GLA contribution using verified oil loading and the oil's measured GLA result. |
| Carrier Composition | Affects dispersibility, processing, formulation compatibility, and labeling. | Carrier identity, allergen status where relevant, and suitability for the target product. |
| Oxidation Stability | Unsaturated fatty acids are susceptible to oxidation, which can affect quality and shelf life. | Peroxide value, relevant oxidation indicators, packaging barrier properties, and stability data. |
Formulation example: If a powder contains 50% evening primrose oil and that oil contains 9% GLA, the theoretical GLA content of the complete powder is approximately 4.5% by weight. This is an illustrative calculation, not a specification for every grade. Actual formulation calculations should use the supplier's verified oil loading and fatty-acid analysis.
Practical sourcing advice: Request both the oil-loading percentage and the GLA fatty-acid profile. Confirm whether GLA is reported against the oil component, total fatty acids, or complete powder. Also review peroxide value and packaging specifications because the oil's unsaturated fatty acids can deteriorate through oxidation during storage.
For professional procurement, the value of a powdered oil ingredient depends on more than the botanical name. Clear disclosure of oil loading, GLA reporting basis, carrier composition, and oxidation controls helps formulation teams compare grades on a meaningful basis.
Common packaging formats include 1 kg and 5 kg barrier foil bags for smaller production runs and larger drums or cartons for bulk procurement. The packaging system should protect the powder from moisture, oxygen, light, and contamination. Packaging selection should also consider repeated opening, warehouse conditions, transport duration, and the expected usage rate after opening.
Store the product in a tightly sealed container in a cool, dry place away from sunlight and excessive heat. Because the oil contains unsaturated fatty acids, exposure to oxygen and elevated temperatures should be minimized. Once opened, reseal the package promptly and follow the storage instructions in the approved product documentation.
OEM and private-label services can support nutritional products containing Evening Primrose Oil Powder, including customized capsules, tablets, sachets, and suitable dry blends. Project scope may include raw-material selection, formulation development, dosage-form manufacturing, packaging, and label customization.
Before production, buyers should define the target GLA amount per serving, oil loading, carrier requirements, sensory expectations, oxidation limits, package format, and destination-market labeling requirements. Finished-product claims should be reviewed for regulatory compliance in each intended market.
Incoming-material acceptance should follow a written specification, appropriate analytical methods, and batch-specific documentation. Depending on the grade and intended use, quality control may include:
Test methods and acceptance criteria should reflect the supplied grade, manufacturing process, and destination-market requirements. Any third-party test report or certification should be reviewed for scope, validity, and relevance to the supplied material.
Oil loading is the percentage of evening primrose oil in the complete powder, while GLA content describes the concentration of gamma-linolenic acid on a specified basis. When GLA is reported as a percentage of the oil, the powder's theoretical GLA percentage depends on both the oil loading and the oil's GLA concentration.
Buyers should request the oil-loading percentage, fatty-acid profile, GLA result and its reporting basis, moisture, and relevant oxidation indicators such as peroxide value. The COA should identify the batch and test methods. Carrier composition and microbiological or contaminant results should also be reviewed according to the intended application.
It can be considered for suitable capsule and tablet formulations when oil loading, flow, compression behavior, carrier composition, and stability meet the manufacturing requirements. Formulators should conduct compatibility and process assessments rather than assuming that every powdered oil grade is suitable for every solid dosage form.
Store the powder in a tightly sealed, moisture-resistant package in a cool, dry place away from direct sunlight and excessive heat. Limit oxygen exposure because unsaturated fatty acids can oxidize during storage. The actual shelf life should be supported by grade-specific stability data and the approved product specification.
Useful documents include a current COA, product specification, TDS, SDS, fatty-acid profile, oil-loading declaration, relevant oxidation test results, and applicable third-party reports. Buyers should confirm that the analytical results use a clearly stated reporting basis and correspond to the supplied commercial grade.
Evening Primrose Oil Powder provides a dry-format option for incorporating evening primrose seed oil and its characteristic gamma-linolenic acid into nutritional formulations. Effective procurement depends on understanding oil loading, GLA reporting basis, carrier composition, oxidation stability, and batch documentation. These parameters help buyers select a grade suited to their formulation, manufacturing process, and target market.
Contact us today to request samples, a COA, technical documents, and a wholesale quotation for Evening Primrose Oil Powder.
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