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Article last updated: October 15, 2024
Dea-Oleth-5 Phosphate, also known by its chemical name (Z)-9-Octadecanol, ethoxylated, phosphates, bis(2-hydroxyethyl)ammonium salts (5 mol EO average molar ratio), is a versatile ingredient commonly found in cosmetic products. This compound is primarily derived from oleyl alcohol, which is a fatty alcohol obtained from natural sources like vegetable oils. The “5 mol EO” part of its name indicates that it has been ethoxylated with an average of five moles of ethylene oxide, a process that enhances its solubility and functionality in water-based formulations.
The history of Dea-Oleth-5 Phosphate in cosmetics dates back to the mid-20th century when the demand for more effective and stable emulsifiers and cleansing agents began to rise. Its unique properties made it an attractive choice for formulators looking to create products that could effectively cleanse the skin without causing irritation. Over the years, it has become a staple in various personal care products, including shampoos, body washes, and facial cleansers.
The production of Dea-Oleth-5 Phosphate involves a multi-step chemical process. Initially, oleyl alcohol undergoes ethoxylation, where ethylene oxide is added to the alcohol to produce ethoxylated oleyl alcohol. This intermediate product is then reacted with phosphoric acid to form the phosphate ester. Finally, the phosphate ester is neutralized with diethanolamine to produce the final compound, Dea-Oleth-5 Phosphate. This meticulous process ensures that the ingredient is both effective and safe for use in cosmetic formulations.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Dea-Oleth-5 Phosphate:
Dea-Oleth-5 Phosphate is primarily known for its cleansing properties. This means it helps to remove dirt, oil, and impurities from the skin or hair. When included in products like shampoos, facial cleansers, or body washes, it works by breaking down and emulsifying the oils and grime, making it easier to rinse them away. This leaves your skin or hair feeling fresh, clean, and free from unwanted residues.
Another key function of Dea-Oleth-5 Phosphate is its role as an emulsifier. In simple terms, an emulsifier helps to blend ingredients that typically don’t mix well, like oil and water. This is crucial for creating stable and uniform cosmetic formulations. For instance, in lotions and creams, it ensures that the product remains smooth and consistent, preventing the ingredients from separating over time. This not only improves the texture and application of the product but also enhances its overall effectiveness.
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).
Dea-Oleth-5 Phosphate 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 Dea-Oleth-5 Phosphate during pregnancy are lacking. Therefore, it is advisable for pregnant or breastfeeding women to consult a healthcare professional for further advice before using products containing this ingredient.
Adverse reactions to Dea-Oleth-5 Phosphate are relatively uncommon, but they can occur. It is recommended to perform a patch test before widespread usage to ensure there are no adverse reactions.
In terms of comedogenicity, Dea-Oleth-5 Phosphate has a rating of 2 on a scale of 0 to 5, where 0 is totally non-comedogenic and 5 is highly comedogenic. This means that while it is relatively low on the comedogenic scale, individuals who are prone to acne, blemishes, or breakouts should still exercise caution when using products containing this ingredient.
