Article last updated: October 15, 2024
Zea Mays Starch, commonly known as corn starch, is a high-polymeric carbohydrate material typically derived from the peeled seeds of corn, scientifically known as Zea mays L., Gramineae. Chemically, it is composed primarily of amylose and amylopectin, which are polysaccharides that give it its unique properties.
The history of Zea Mays Starch in cosmetics dates back to ancient times when corn was first cultivated by indigenous peoples in the Americas. Over the centuries, the versatile nature of corn starch was discovered, leading to its use in various applications, including food, medicine, and eventually, cosmetics. Its journey into the cosmetic industry was driven by its natural origin and multifunctional properties, making it a popular choice for formulators seeking effective and safe ingredients.
The production of Zea Mays Starch involves several steps. Initially, the corn kernels are cleaned and steeped in water to soften them. The softened kernels are then ground to separate the germ from the rest of the kernel. The resulting slurry is further processed to extract the starch, which is then washed, dried, and milled into a fine powder. This meticulous process ensures that the starch retains its beneficial properties, making it suitable for various cosmetic applications.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Zea Mays Starch:
Zea Mays Starch can act as a gentle abrasive in cosmetic formulations. This means it helps to exfoliate the skin by removing dead skin cells, leaving your skin feeling smoother and looking more radiant. It’s a mild option compared to other exfoliating agents, making it suitable for sensitive skin types.
One of the standout features of Zea Mays Starch is its ability to absorb excess oils and moisture. This makes it a popular ingredient in products like face powders and dry shampoos, where it helps to keep your skin and hair looking fresh and matte by soaking up unwanted oil and sweat.
In powdered cosmetics, Zea Mays Starch serves as an anticaking agent. This means it prevents the formation of lumps, ensuring that the product remains smooth and easy to apply. Whether it’s in your favorite loose powder or eyeshadow, this ingredient helps maintain a consistent texture.
Zea Mays Starch also offers skin-protecting benefits. It forms a barrier on the skin’s surface, which can help shield it from environmental irritants and pollutants. This protective layer can also help to soothe and calm the skin, making it a beneficial addition to products designed for sensitive or irritated skin.
In cosmetic formulations, controlling the thickness or viscosity of a product is crucial for ensuring it spreads easily and feels pleasant on the skin. Zea Mays Starch helps to achieve the desired consistency in creams, lotions, and other products, ensuring they are neither too runny nor too thick.
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).
Zea Mays Starch is generally considered safe for topical application 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 Zea Mays Starch 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 Zea Mays Starch are uncommon, but it is always prudent to conduct a patch test before widespread usage to ensure there are no adverse reactions.
In terms of comedogenicity, Zea Mays Starch 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 indicates that it is unlikely to clog pores, making it suitable for individuals prone to acne, blemishes, or breakouts.
