Description

Oenothera biennis seed extract, also known as evening primrose seed extract, is derived from the seeds of the Oenothera biennis plant, which belongs to the Onagraceae family. This extract is prized for its high content of essential fatty acids and other beneficial compounds, making it a valuable ingredient in cosmetic and nutraceutical products.

Chemical Composition and Structure

Oenothera biennis seed extract contains several key bioactive compounds, including:

Essential fatty acids: particularly abundant in gamma-linolenic acid (GLA), a polyunsaturated fatty acid known for its anti-inflammatory properties and support for skin health.
Flavonoids: includes flavonoids that contribute to the extract's antioxidant and anti-inflammatory effects.
Phenolic compounds: contains phenolic compounds that provide antioxidant protection and enhance the benefits for the skin.
Vitamins: offers vitamins such as vitamin E, which supports skin health and protects against oxidative stress.
The chemical structure of Oenothera biennis seed extract features a variety of essential fatty acids and polyphenolic compounds that contribute to its beneficial properties.

Physical Properties

Oenothera biennis seed extract is typically a light yellow to amber liquid with a mild, vegetal aroma. It is soluble in oils and organic solvents, making it suitable for integration into various cosmetic and nutraceutical formulations.

Production Process

The production process for Oenothera biennis seed extract involves several steps:

Harvesting: Seeds of Oenothera biennis are collected from the plant. These seeds are particularly rich in essential fatty acids and bioactive compounds.

Preparation: The seeds are cleaned and prepared for extraction. This involves removing impurities and preparing the seeds for the extraction process.

Extraction:

Solvent Extraction: The prepared seeds are treated with solvents such as vegetable oils or alcohol to extract the bioactive compounds. This process produces a concentrated extract.
Cold Pressing: An alternative method where the seeds are mechanically pressed to obtain oil, preserving its natural compounds.
Purification: The extract is purified to remove impurities and obtain a high-quality product. This typically includes filtration and concentration.

Formulation: The purified extract is incorporated into various cosmetic and nutraceutical formulations, such as creams, lotions, serums, and supplements. It is combined with other ingredients to maximize its benefits.

Quality Control: The final product undergoes rigorous quality control testing to ensure it meets safety, efficacy, and performance standards. This includes checks for purity, stability, and compatibility with other ingredients.

Storage: The extract is stored in airtight containers, protected from light, moisture, and heat, to maintain its stability and effectiveness.

Applications

Medical: Oenothera biennis seed extract can be used in nutraceutical formulations for its anti-inflammatory and antioxidant properties. It may be used in treatments for inflammatory conditions and to support overall skin health.

Cosmetic: In cosmetics, Oenothera biennis seed extract is valued for its antioxidant and skin-supporting properties. It is utilized in products such as creams, lotions, serums, and masks to enhance skin health and protect against environmental damage.

Other: The extract can also be included in other personal care products and potentially in additional therapeutic applications.

Environmental and Safety Considerations

Oenothera biennis seed extract is generally considered safe for use in cosmetics and nutraceuticals when used according to recommended guidelines. It is a natural ingredient with a low risk of irritation or allergic reactions. Environmentally, the sustainable harvesting of seeds and the use of appropriate extraction methods contribute to reducing ecological impact compared to wild harvesting, supporting more sustainable production practices.

INCI


Skin conditioning agent. It is the mainstay of topical skin treatment as it has the function of restoring, increasing or improving skin tolerance to external factors, including melanocyte tolerance. The most important function of the conditioning agent is to prevent skin dehydration, but the subject is rather complex and involves emollients and humectants that can be added in the formulation.
Synonyms:

CAS: 90028-66-3 EC number 289-859-2