One involved a grandfather (played by actor Robert Wilson) who removed his false teeth to spoil his grandson's interest in his can of Irn-Bru.

The makers of the fizzy drink AG Barr, first added the "old and unimproved" 1901 drink to its line-up in 2019.A mother plays the piano, while the father and two children deliver a song which ends with the mother singing: ". A tagline, "Made in Scotland from girders", was used for several years from the 1980s, usually featuring Irn-Bru drinkers becoming unusually strong, durable or magnetic. Now, fans can rest easy knowing the 750ml glass bottles of the ginger nectar will be available for them to enjoy year-round – just as it was in 1901.

After its original bottler went out of business, a new deal was signed for the drink to be manufactured and distributed in larger quantities by the Pepsi Bottling Group of Russia in 2002. Irn-Bru's advertising slogans used to be 'Scotland's other National Drink', referring to whisky, and 'Made in Scotland from girders', a reference to the rusty colour of the drink; [20] though the closest one can come to substantiating this claim is the 0. There is also a sugar-free version and Irn Bru Xtra, which also has no sugar, containing just 1 calorie per 100ml.

Barr's actively promoted their Irn-Bru from the outset, with some of their earliest ads featuring world champion wrestlers and Highland Games athletes Donald Dinnie and Alex Munro who endorsed the drink by means of personal testimonials. An advertisement for Barr's Iron Brew dated 1900 featuring the original strongman label can be found in Falkirk's Local History Archives. One billboard that drew criticism featured a young woman in a bikini along with the slogan "Diet Irn-Bru.