Casca Nail Boutique is a nail salon located in Maryville, IL. According to their website, they offer a bespoke treatment that indulges the senses with clean ingredients that hydrate, nourish, and invigorate the skin. However, there is no specific information about the ingredients or materials used in their products.

It is important to note that nail products used in salons may contain chemicals that can affect worker health. The FDA regulates nail products for both home and salon use, and these products are generally regulated as cosmetics. The labels of all cosmetics, whether marketed to consumers or salons, must include a warning statement whenever necessary or appropriate to prevent a health hazard that may occur with use of the product. Cosmetics sold on a retail basis to consumers must also bear a list of ingredients, with the names of the ingredients listed in descending order of predominance.

Based on the available information, it is unclear what ingredients or materials are used in Casca Nail Boutiques products. It is recommended to inquire with the salon directly or to check the labels of the products used during a visit.