Article last updated: October 15, 2024
Polyglyceryl-10 Tristearate, also known by its chemical name 1,2,3-Propanetriol, homopolymer, octadecanoates (1:3) (10 mol glycerol average molar ratio), is a versatile ingredient primarily used for skin conditioning in cosmetic products. This compound is derived from glycerol, a simple polyol compound, and stearic acid, a saturated fatty acid commonly found in animal and plant fats. The “10” in its name indicates that it is a polymer made from ten glycerol units.
The use of polyglyceryl esters like Polyglyceryl-10 Tristearate in cosmetics has a relatively recent history, gaining popularity as consumers and manufacturers alike began to seek out more skin-friendly and biodegradable alternatives to traditional surfactants and emulsifiers. Its rise in the cosmetic industry can be attributed to its excellent skin conditioning properties and its ability to enhance the texture and stability of formulations.
Polyglyceryl-10 Tristearate is produced through a process called esterification, where glycerol is reacted with stearic acid. This reaction forms a stable ester bond, resulting in a compound that is both hydrophilic (water-attracting) and lipophilic (oil-attracting). This dual affinity makes it an excellent emulsifier, capable of blending oil and water-based ingredients seamlessly in cosmetic formulations.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Polyglyceryl-10 Tristearate:
Polyglyceryl-10 Tristearate is primarily used for its skin conditioning properties. This means it helps to maintain the skin in good condition. When applied in cosmetic formulations, it works to keep the skin soft, smooth, and healthy-looking. It achieves this by forming a protective barrier on the skin’s surface, which helps to lock in moisture and prevent dryness. This makes it a valuable ingredient in products like moisturizers, lotions, and creams, where maintaining skin hydration is key.
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-10 Tristearate is generally considered safe for use in cosmetic products. It is known for its skin conditioning properties and is typically well-tolerated by most skin types. 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-10 Tristearate 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 Polyglyceryl-10 Tristearate are relatively uncommon. However, it is always a good practice to perform a patch test before widespread usage to ensure that your skin does not react negatively to the ingredient.
In terms of comedogenicity, Polyglyceryl-10 Tristearate has a rating of 1 on a scale of 0 to 5, where 0 is totally non-comedogenic and 5 is highly comedogenic. This low rating means that it is unlikely to clog pores and is generally suitable for people prone to acne, blemishes, or breakouts.
