Article last updated: October 15, 2024
Sodium Glycereth-1 Polyphosphate, also known by its more technical name 1,2,3-Propanetriol, ethoxylated, esters with tetraphosphoric acid, sodium salts (1 mol EO average molar ratio), is a multifunctional ingredient commonly used in cosmetic formulations. This ingredient is derived from glycerin, a well-known humectant, which undergoes ethoxylation—a chemical process where ethylene oxide is added to a substrate. The resulting compound is then esterified with tetraphosphoric acid and neutralized with sodium salts to form Sodium Glycereth-1 Polyphosphate.
The history of Sodium Glycereth-1 Polyphosphate in cosmetics is relatively recent, emerging as a versatile ingredient that can perform multiple functions. Initially, the focus was on its chelating properties, which help to bind and neutralize metal ions that can destabilize cosmetic formulations. Over time, formulators discovered its additional benefits, such as gel forming, cleansing, and viscosity controlling, making it a valuable addition to a wide range of products from facial cleansers to shampoos.
The production process of Sodium Glycereth-1 Polyphosphate involves several steps. First, glycerin is ethoxylated to introduce ethylene oxide units, which enhance its solubility and functionality. This ethoxylated glycerin is then reacted with tetraphosphoric acid to form esters. Finally, the esterified product is neutralized with sodium salts to yield the final compound. This multi-step synthesis ensures that the ingredient is both effective and safe for use in various cosmetic applications.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Sodium Glycereth-1 Polyphosphate:
Sodium Glycereth-1 Polyphosphate acts as a chelating agent. In simple terms, this means it helps to bind and neutralize metal ions that can be present in water or other ingredients. These metal ions can negatively affect the stability and appearance of cosmetic products. By chelating these ions, this ingredient helps to maintain the integrity and effectiveness of the product, ensuring it works as intended and has a longer shelf life.
This ingredient is also known for its gel-forming capabilities. It can help to create a gel-like consistency in cosmetic formulations, which can be particularly beneficial for products like moisturizers, serums, and hair gels. This gel-forming property allows for a smooth and even application, enhancing the user experience by making the product easier to spread and absorb into the skin or hair.
Sodium Glycereth-1 Polyphosphate has cleansing properties, making it a valuable addition to products like shampoos, facial cleansers, and body washes. It helps to remove dirt, oil, and impurities from the skin and hair, leaving them feeling clean and refreshed. This cleansing action is gentle yet effective, making it suitable for a wide range of skin types, including sensitive skin.
Another important function of this ingredient is viscosity control. It helps to adjust the thickness of cosmetic products, ensuring they have the right consistency for their intended use. Whether you need a thick cream or a light lotion, Sodium Glycereth-1 Polyphosphate can help to achieve the desired texture, making the product more appealing and easier to use.
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).
Sodium Glycereth-1 Polyphosphate 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, there is a lack of specific data and research on the topical usage of Sodium Glycereth-1 Polyphosphate during pregnancy. 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 Sodium Glycereth-1 Polyphosphate are relatively uncommon. However, it is always recommended to conduct a patch test before widespread usage to ensure that your skin does not react negatively to the ingredient.
On a comedogenicity scale of 0 to 5, Sodium Glycereth-1 Polyphosphate is rated as 0, meaning it is non-comedogenic. This makes it suitable for individuals who are prone to acne, blemishes, or breakouts, as it is unlikely to clog pores.
