What is Zea Mays Starch?
Zea Mays Starch, often found in cosmetic products, is a high-polymeric carbohydrate material derived from the peeled seeds of corn, specifically from a plant known as Zea Mays L., belonging to the Gramineae family. It’s also commonly referred to as corn starch. In the world of beauty products, it’s prized for its roles as an abrasive, absorbent, anticaking agent, skin protector, and viscosity controller.
To make Zea Mays Starch, corn kernels are first soaked and then milled to separate the germ and the bran. After this, the endosperm, which is the nutrient-rich core of the kernel, is ground into a fine powder – that’s the corn starch. This powder is then processed and purified for use in various products. Its effectiveness in cosmetics comes from its ability to absorb moisture and oil, making it an excellent ingredient for products aimed at controlling shine and providing a smooth, matte finish.
Who Can Use Zea Mays Starch?
Zea Mays Starch is generally suitable for all skin types. It’s particularly beneficial for oily skin due to its high absorbency. However, if you have very dry or sensitive skin, you might want to use it cautiously as it can potentially dry out or irritate your skin further.
For vegans and vegetarians, Zea Mays Starch is a great ingredient as it is derived from corn, a plant-based source. There are no animal products or byproducts involved in its production, making it suitable for these lifestyles.
Regarding its use during pregnancy or breastfeeding, there are no specific contraindications. However, as with any product, it’s always a good idea for expectant or new mothers to consult with a healthcare provider before introducing something new into their skincare routine.
Zea Mays Starch’s Cosmetic Benefits/Uses
The benefits and uses of Zea Mays Starch in cosmetics, as defined by the International Nomenclature of Cosmetic Ingredients (INCI) and the Personal Care Products Council (PCPC), are numerous:
- Oil Absorption: Zea Mays Starch is highly effective at absorbing excess oil and sebum from the skin. This property makes it an ideal ingredient in formulations aimed at individuals with oily skin types. The starch molecules have a high surface area that can trap and absorb lipids, reducing shine and leaving the skin with a matte finish.
- Skin Soothing: This ingredient is known for its soothing properties on the skin. It helps in calming irritated skin, which can be particularly beneficial in products intended for sensitive skin types. The mechanism behind this benefit is its ability to form a barrier on the skin, which can help to protect it from irritants and reduce redness and inflammation.
- Texture Enhancer: Zea Mays Starch improves the texture of cosmetic products, making them more silky and smooth. It acts as a natural thickener in creams, lotions, and powders, providing a desirable consistency that enhances the user experience. This smoother texture also aids in the even application of the product on the skin.
- Product Stability: It contributes to the stability of cosmetic formulations by helping to distribute other ingredients evenly and prevent them from settling. This stabilizing effect ensures that the product maintains its efficacy and aesthetic appeal over time.
- Matte Finish: In makeup products, such as foundations and powders, Zea Mays Starch is used to provide a matte finish. It diffuses light and minimizes the appearance of pores and fine lines, resulting in a smooth, flawless complexion. This benefit is particularly appreciated in high-definition and photo-ready makeup products.
Potential Side Effects/Adverse Reactions
Side effects and reactions to the topical application of Zea Mays Starch can vary from person to person. While generally considered safe, some individuals may experience adverse reactions depending on their skin type and sensitivities.
- Allergic Reactions: Symptoms can include redness, itching, or swelling.
- Respiratory Issues: Inhalation of the powder may cause sneezing or respiratory discomfort in sensitive individuals.
- Skin Irritation: Some people might experience dryness or irritation, especially in areas of sensitive skin.
- Acne Breakouts: Due to its nature, Zea Mays Starch might contribute to acne or clogged pores in acne-prone individuals.
If you experience any of these side effects while using a product containing Zea Mays Starch, it is advisable to discontinue use immediately and consult a healthcare professional if symptoms persist.
While the list of potential side effects might sound extreme or scary, it’s important to note that adverse reactions to Zea Mays Starch are relatively rare. Most people use products containing this ingredient without any issues.
Finally, it’s always a good idea to perform a patch test before using any new cosmetic product extensively. This simple step can help you avoid unwanted reactions and ensure that the product is suitable for your skin type.
Comedogenic Rating
Comedogenicity refers to the potential of cosmetic ingredients to cause comedones, which are skin blemishes commonly known as blackheads and whiteheads. This characteristic is particularly important for individuals with acne-prone skin, as ingredients with a high comedogenic rating can exacerbate or lead to breakouts.
Zea Mays Starch has a comedogenic rating of 0. This means it is non-comedogenic and does not clog pores. The rating is attributed to its molecular size and structure, which allows it to sit on the skin without penetrating the follicles and causing blockages.
Given its non-comedogenic nature, Zea Mays Starch is suitable for those who are prone to acne and breakouts. It poses minimal risk of clogging pores or triggering acne.
Conclusion
Zea Mays Starch serves multiple functions in cosmetic formulations, including acting as an abrasive, absorbent, anticaking agent, skin protector, and viscosity controller. Its versatility makes it a popular choice among formulators, particularly in products designed to protect and enhance the skin’s appearance without contributing to acne.
While not as widely recognized as some other cosmetic ingredients, Zea Mays Starch holds its own in the industry due to its effectiveness and safety. It is similar to other plant-based starches used in cosmetics, offering a natural and gentle alternative to synthetic ingredients.
Overall, Zea Mays Starch is considered safe for use in cosmetics. Its non-comedogenic and skin-friendly properties make it a valid and beneficial ingredient in contemporary cosmetic formulations.