Description

Oenothera biennis root extract, commonly known as evening primrose root extract, is derived from the roots of the Oenothera biennis plant, which belongs to the Onagraceae family. This extract is valued for its antioxidant, anti-inflammatory, and circulation-stimulating properties.

Chemical Composition and Structure

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

Essential fatty acids: The roots are rich in essential fatty acids such as gamma-linolenic acid (GLA), which has anti-inflammatory and skin-regenerative effects.
Flavonoids: Present in the roots, flavonoids contribute to the extract's antioxidant and anti-inflammatory properties.
Phenolic acids: The roots contain phenolic acids that provide antioxidant protection and enhance the extract's skin benefits.
Saponins: Present in the roots, saponins can contribute to circulation stimulation and skin health.
The chemical structure of Oenothera biennis root extract is characterized by a combination of essential fatty acids, flavonoids, phenolic acids, and saponins, which contribute to its therapeutic properties.

Physical Properties

Oenothera biennis root extract is typically a light brown or yellowish liquid with an earthy, vegetal aroma. It is soluble in organic solvents and may vary in color and consistency depending on the extraction method and concentration.

Production Process

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

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

Preparation: The collected roots are cleaned and prepared for extraction, which involves removing impurities and preparing the material for treatment.

Extraction:

Solvent Extraction: The prepared roots are treated with solvents such as water, alcohol, or vegetable oils to extract the bioactive compounds. This process produces a concentrated extract.
Cold Extraction: An alternative method that may be used to preserve the natural compounds during extraction.
Purification: The extract is purified to remove impurities and obtain a high-quality product. This typically involves filtration and concentration.

Formulation: The purified extract is incorporated into various cosmetic and nutraceutical formulations, such as creams, lotions, serums, and supplements. It is blended with other ingredients to optimize 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, away from light, moisture, and heat, to maintain its stability and effectiveness.

Applications

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

Cosmetic: In cosmetics, Oenothera biennis root extract is valued for its antioxidant, anti-inflammatory, and circulation-stimulating properties. It is used in products such as creams, lotions, serums, and masks to enhance skin health and support circulation.

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

Environmental and Safety Considerations

Oenothera biennis root 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, sustainable harvesting of roots and the use of appropriate extraction methods help minimize 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