MAC Cosmetics is a makeup brand that offers more than 100 shades of professional quality cosmetics for all ages, races, and genders. Their product pages include lists of ingredients and product benefits to help customers make informed choices. However, without a specific product name, it is impossible to provide details on the ingredients, materials, positive, and negative aspects of the product. It is important to note that some makeup and skincare products may contain harmful ingredients, such as parabens, phthalates, and synthetic fragrances. Customers should always read the ingredient list and do their research before purchasing a product.