Article last updated: October 15, 2024
Polyglyceryl-2 Dioleate, also known by its chemical name 1,2,3-Propanetriol, homopolymer, 9-(Z)-octadecenoates (1:2) (2 mol glycerol average molar ratio), is a versatile ingredient commonly found in cosmetic products. This compound is derived from glycerol and oleic acid, making it a type of polyglycerol ester. Glycerol, also known as glycerin, is a simple polyol compound, while oleic acid is a fatty acid that occurs naturally in various animal and vegetable fats and oils.
The use of Polyglyceryl-2 Dioleate in cosmetics has a relatively recent history, emerging as a popular ingredient due to its multifunctional properties. Initially, the focus was on its emulsifying capabilities, but over time, its film-forming properties have become highly valued in the formulation of skincare and haircare products. The ingredient’s ability to create a thin, protective layer on the skin or hair makes it particularly useful in products designed to lock in moisture and protect against environmental stressors.
The production of Polyglyceryl-2 Dioleate involves a process called esterification, where glycerol reacts with oleic acid. This reaction results in the formation of a polyglycerol ester, which is then purified and refined for use in cosmetic formulations. The average molar ratio of 2 mol glycerol ensures a balanced composition that optimizes its film-forming capabilities without compromising on safety or efficacy.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Polyglyceryl-2 Dioleate:
One of the primary benefits of Polyglyceryl-2 Dioleate is its ability to form a film on the skin or hair. This means that when applied, it creates a thin, continuous layer that can help protect the skin or hair from environmental aggressors. This film-forming property can also help to lock in moisture, making it a valuable ingredient in products designed to hydrate and protect.
For example, in skincare products, this film can act as a barrier to prevent moisture loss, which is particularly beneficial for dry skin types. In hair care products, the film can help to smooth the hair cuticle, reduce frizz, and add a layer of protection against heat styling tools and environmental damage.
Note: the listed benefits above are exclusively based on the officially recognized and defined functions of the ingredient, as documented by the International Nomenclature of Cosmetic Ingredients (INCI).
Polyglyceryl-2 Dioleate is generally considered safe for use in cosmetic products. However, as with any ingredient, there are potential side effects and considerations to keep in mind.
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Polyglyceryl-2 Dioleate during pregnancy are lacking. Therefore, it is advisable for these individuals to consult a healthcare professional for further advice.
Adverse reactions to Polyglyceryl-2 Dioleate are relatively uncommon, but it is always prudent to perform a patch test before widespread usage to ensure there are no adverse reactions.
On the comedogenicity scale, Polyglyceryl-2 Dioleate is rated at a 1, indicating it is very low on the scale of pore-clogging potential. This means it is unlikely to cause acne or breakouts, making it suitable for individuals prone to blemishes or sensitive skin.
