Most consumers give priority to product quality and product safety, such as have been approved by the food and drug administration and the Institute for the certification of products, quality and usefulness of the product and the nature of the packaging material, such as ease of use, of the packaging. With packaging and packaging beauty, diversity of formats, the reliability of the brand, and the brand's familiarity, ease of purchase, warranty, product sample distribution, promotions, prices, discounts in the purchase of goods, the data from the sales staff, promotional gifts and advertising distribution through various media.