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Ingredient Analysis: Oleoyloxyphenoxy Propionic Acid

This page was last updated: 6 months ago. All information accurate at time of publishing.
Unravel the mysteries of Oleoyloxyphenoxy Propionic Acid (pronounced o-leo-y-loxy-phe-noxy pro-ponic acid), a synthetic compound used in cosmetics, as we delve into its origin, benefits, and safety in this comprehensive guide.

What is Oleoyloxyphenoxy Propionic Acid?

Oleoyloxyphenoxy Propionic Acid, also known as OPA, is a synthetic compound that is used in the cosmetic industry for its antioxidant and skin conditioning properties. It is a complex ester derived from oleic acid, a fatty acid commonly found in many plant oils, and phenoxypropionic acid, a type of phenolic compound. This combination of components gives OPA its unique properties and makes it a valuable ingredient in many cosmetic formulations.

The use of OPA in cosmetics is relatively recent, with the ingredient first appearing in products in the late 20th century. It was initially developed as a result of research into the beneficial properties of fatty acids and phenolic compounds, which are both known for their antioxidant and skin conditioning effects. The process of creating OPA involves the esterification of oleic acid and phenoxypropionic acid, resulting in a compound that combines the beneficial properties of both.

OPA is similar to other fatty acid-derived ingredients used in cosmetics, such as stearic acid and palmitic acid. Like these ingredients, OPA acts as an emollient, helping to soften and smooth the skin. However, OPA also has antioxidant properties, thanks to the presence of the phenolic compound. This sets it apart from many other fatty acid-derived ingredients, which do not have this additional benefit.

Typically, you can find Oleoyloxyphenoxy Propionic Acid in a variety of cosmetic products, including moisturizers, serums, and anti-aging treatments. Its dual function as an emollient and antioxidant makes it a versatile ingredient, capable of both improving the skin’s texture and protecting it from oxidative stress. This wide range of applications makes OPA a valuable addition to many cosmetic formulations.

Benefits and Uses

In this section, we will delve into the officially recognized benefits and uses of Oleoyloxyphenoxy Propionic Acid:

Antioxidant Properties

Oleoyloxyphenoxy Propionic Acid is recognized for its antioxidant properties. In simple terms, antioxidants are substances that can prevent or slow damage to cells caused by free radicals, which are unstable molecules that the body produces as a reaction to environmental and other pressures. In the context of skincare, this means that Oleoyloxyphenoxy Propionic Acid can help protect your skin from damage caused by environmental factors such as pollution and UV rays. This can result in healthier, more youthful-looking skin.

Skin Conditioning

Another official function of Oleoyloxyphenoxy Propionic Acid is its ability to condition the skin. Skin conditioning agents are used to enhance the appearance and feel of the skin. They work by increasing the skin’s hydration, suppleness, and smoothness, and by reducing roughness, cracking, and irritation. In practical terms, this means that products containing Oleoyloxyphenoxy Propionic Acid can help your skin feel softer, smoother, and more comfortable.

It’s important to note that these benefits are based on the officially recognized and defined functions of Oleoyloxyphenoxy Propionic Acid. There may be other benefits and uses of this ingredient that go beyond these official functions, but these are the primary benefits that you can expect based on the current scientific understanding of this ingredient.

Safety Profile

Oleoyloxyphenoxy Propionic Acid is not a banned or regulated ingredient in cosmetics. It is generally considered safe for use in cosmetic products. However, as with any ingredient, individual reactions can vary and it is always recommended to do a patch test before using a new product widely.

While it is generally well-tolerated, some potential side effects of topical application of Oleoyloxyphenoxy Propionic Acid may include:

  • Redness
  • Itching
  • Skin irritation

A note for women who are pregnant and/or breastfeeding – there is currently a lack of data regarding the safety of topically applied Oleoyloxyphenoxy Propionic Acid during pregnancy or breastfeeding. As such, it is recommended to consult a healthcare professional for further advice.

Adverse reactions to this ingredient are not common, but as with any cosmetic ingredient, individual reactions can vary. It is always recommended to do a patch test before using a new product widely.

This ingredient analysis has been commissioned by Truth In Skincare (TiS), an independent industry regulator. The analysis was conducted by a TiS-appointed industry consultant, using sources including the CosIng (Cosmetic Ingredient Database – by the European Commission), the Personal Care Products Council (PCPC), The US Food & Drug Administration (FDA), and other various publicly available sources.