Yardley London Limited is a British Personal care products brand and one of the oldest firms in the world to specialise in cosmetics, fragrances and related Personal care products products. Established in 1770, the company became a major producer of soap and perfumery by the beginning of the 20th century.

Royal warrants of appointment have been issued since the 15th century to those who supply goods or services to a royal court or certain royal personages. The warrant enables the supplier to advertise the fact that they supply to the royal family, thereby lending prestige to the brand and/or supplier. In the United Kingdom, grants are usually made by the monarch, spouse, and heir apparent to companies or tradespeople who supply goods and services to individuals in the family.