Description

Oenothera biennis extract, commonly known as evening primrose extract, is derived from various parts of the Oenothera biennis plant, which belongs to the Onagraceae family. This extract is recognized for its antioxidant, anti-inflammatory, and regenerative properties and is used in both cosmetic and pharmaceutical applications.

Chemical Composition and Structure

Oenothera biennis extract contains several bioactive compounds, including:

Essential fatty acids: Rich in polyunsaturated fatty acids, particularly gamma-linolenic acid (GLA), which is 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.
Tannins: Contains tannins that may provide astringent and protective effects on the skin.
Vitamins: Provides vitamins such as vitamin E, which helps protect against oxidative stress and supports overall skin health.
The chemical structure of Oenothera biennis extract features a variety of polyphenolic compounds and essential fatty acids that contribute to its beneficial properties for the skin.

Physical Properties

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

Production Process

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

Harvesting: Parts of the Oenothera biennis plant, such as seeds, leaves, and flowers, are harvested. The seeds are particularly rich in essential fatty acids.

Preparation: The harvested plant material is prepared for extraction by cleaning and macerating it into an appropriate form.

Extraction:

Solvent Extraction: The plant material is treated with solvents, such as vegetable oils or alcohol, to extract the bioactive compounds. This results in a concentrated extract.
Ultrasound or CO2 Supercritical Extraction: Advanced methods like ultrasound-assisted extraction or supercritical CO2 extraction may be used to enhance the efficiency and quality of the extract.
Purification: The extract is purified to remove impurities and obtain a high-quality product. This typically involves filtration and concentration processes.

Formulation: The purified extract is incorporated into various cosmetic formulations, including creams, lotions, serums, and masks. It is combined with other ingredients to maximize its benefits for the skin.

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 extract can be used in pharmaceutical formulations for its antioxidant and anti-inflammatory properties. It may be applied in treatments for inflammatory conditions and to support overall skin health.

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

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

Environmental and Safety Considerations

Oenothera biennis extract is generally considered safe for use in cosmetics and pharmaceuticals when used according to recommended guidelines. It is a natural ingredient with a low risk of irritation or allergic reactions. Environmentally, sustainable harvesting practices and laboratory production can reduce ecological impact compared to wild harvesting, supporting more sustainable production methods.

INCI


Antioxidant agent. Ingredient that counteracts oxidative stress and prevents cell damage. Free radicals, pathological inflammatory processes, reactive nitrogen species and reactive oxygen species are responsible for the ageing process and many diseases caused by oxidation.

Skin protectant. It creates a protective barrier on the skin to defend it from harmful substances, irritants, allergens, pathogens that can cause various inflammatory conditions. These products can also improve the natural skin barrier and in most cases more than one is needed to achieve an effective result.

Skin conditioning agent - Miscellaneous. This ingredient has the task of modifying and improving the condition of the skin when it is damaged or dry, reducing flaking and restoring its elasticity.
Synonyms:

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