Description

Grape Seed Oil Polyglycerin-6 Esters are a class of compounds obtained by the transesterification of vitis vinifera (grape) seed oil and polyglycerin-6. these esters are valued for their emollient and emulsifying properties, making them useful in various cosmetic and pharmaceutical applications.

CHEMICAL COMPOSITION AND STRUCTURE

chemically, grape seed oil polyglycerin-6 esters consist of fatty acid chains from grape seed oil bonded to a polyglycerol backbone containing six glycerol units. this structure provides the compound with unique moisturizing and emulsifying properties.

PHYSICAL PROPERTIES

Appearance: generally a clear to pale yellow liquid.
Odor: characteristic mild odor.
Solubility: insoluble in water, but dispersible in oil and some organic solvents.
Density: varies based on specific formulation and concentration of the esters.

PRODUCTION PROCESS

Harvesting the Seeds: grape seeds are harvested from the vitis vinifera plant.
Oil Extraction: the oil is extracted from the seeds using methods such as cold pressing.
Preparation of Polyglycerin-6: glycerin is polymerized to form polyglycerin-6.
Transesterification: grape seed oil is reacted with polyglycerin-6 under controlled temperature and pressure conditions to form the esters.
Filtration and Purification: the resulting esters are filtered and purified to remove impurities and obtain a high-quality product.
Packaging and Storage: the final product is packaged and stored in a cool, dry place to maintain its properties.

APPLICATIONS

Medical: used in topical formulations for its emollient and moisturizing properties, helping to improve skin health.
Cosmetics: commonly found in creams, lotions, emulsions, and hair care products as an emollient and emulsifier. enhances texture, spreadability, and moisturizing effects of cosmetic products.
Others: used as a non-toxic, biodegradable emulsifier and stabilizer in various industrial formulations.

ENVIRONMENTAL AND SAFETY CONSIDERATIONS

Biodegradability: grape seed oil polyglycerin-6 esters are biodegradable, making them environmentally friendly.
Toxicity: generally considered non-toxic and safe for use in personal care and pharmaceutical products. however, it is essential to ensure that the product is free from contaminants and complies with regulatory standards.
Allergenicity: as with all chemical and natural compounds, individual reactions of intolerance or allergy cannot be excluded.

INCI


Chelating agent. It has the function of preventing unstable reactions and improving the bioavailability of chemical components within a product, and removes calcium and magnesium cations that can cause cloudiness in clear liquids.

Skin conditioning agent - Emollient. Emollients have the characteristic of enhancing the skin barrier through a source of exogenous lipids that adhere to the skin, improving barrier properties by filling gaps in intercorneocyte clusters to improve hydration while protecting against inflammation. In practice, they have the ability to create a barrier that prevents transepidermal water loss. Emollients are described as degreasing or refreshing additives that improve the lipid content of the upper layers of the skin by preventing degreasing and drying of the skin. The problem with emollients is that many have a strong lipophilic character and are identified as occlusive ingredients; they are oily and fatty materials that remain on the skin surface and reduce transepidermal water loss. In cosmetics, emollients and moisturisers are often considered synonymous with humectants and occlusives.

Emulsion stabiliser. Emulsions are thermodynamically unstable. Emulsion stabilisers improve the formation and stability of single and double emulsions. as well as their shelf-life. It should be noted that in the structure-function relationship, the molar mass of the ingredient used plays an important role.

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.

Surfactant - Cleansing agent. Cosmetic products used to cleanse the skin utilise the surface-active action that produces a lowering of the surface tension of the stratum corneum, facilitating the removal of dirt and impurities.
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