The invention relates to systems and methods for marketing and using products such as liquid materials, especially liquid reagents for use in microbiological and cellular biological laboratory settings include the use of unique color and simple numeric or alphanumeric identifiers to quickly and easily identify any product from a catalog list of products. Methods of marketing, advertising and producing such products are also disclosed. Particular embodiments include products, product packaging and product labeling. The invention also relates to collars and sleeves for containers, as well as related methods of use.