The subject of the ensuing pages is advertising by ‘perfumers’, a late Georgian term most commonly applied to barbers who had expanded their business into the manufacture and sale of products in the areas of grooming and beautification: skin lotions, toothpastes and, most importantly of all, hair oils (hair lotions, dyes and tonics were the most lucrative of the perfumers' products). They discuss the controversy regarding the best method of dressing the hair that exercised contemporary manufacturers and consumers alike: animal fat or vegetable fat, or, most particularly, bear's grease or macassar? As well as examining the promotional strategies of the perfumers, most notable of whom were Alexander Rowland and Son, they of the famed Macassar Oil, and James Atkinson, proprietor of the most well-known of all animal fat-based hair dressings, Atkinson's Bear's Grease, I also attend to various satirical works that deal with the dressing of the hair. Tonsorial, or ‘crinicultural’, satire is a fascinating sub-genre of Romantic period comic writing, and varies widely in its intent; some has clear political resonance, such as the mid-1790s political satire that greeted Pitt's introduction of a tax on hair powder (such as John Wolcot's Hair Powder: A Plaintive Epistle to Mr Pitt or the anonymous The Minister's Head Dressed According to Law, or a Word of Comfort to Hair-Dressers (both 1795), while others are less sociopolitically engaged comic treatments of the dressing of the hair (such as the Useful Advice to Hair-Dressers, Barbers & c., by John Moor (1810)).