This was one of the products of Susan Allen, of New York City. An 1856 ad said she started selling the brand in 1840. Around 1862, Selah R. Van Duzer became the sole proprietor. Van Duzer registered the brand name as a trademark in 1876 (#2399). An ad in 1858 said that at that time the Restorer was always put up in dark purple bottles with the Broome Street address embossed on them. There was actually two products in the large flint glass bottles - one for light hair and one for dark hair. The 1870 Detroit Review of Medicine and Pharmacy examined this preparation and found it to contain 5.57 grains of lead per fluid ounce. IT WAS A DYE.