‘Here is my stack’: complementary promotion of nicotine and ‘productivity’ pouches on social media

As nicotine pouches have exploded in popularity, a parallel market of ‘energy’ or ‘productivity’ pouches (dietary supplements in oral pouch form) has appeared across US and EU markets. A key feature of this landscape is not merely the parallel existence of these products, but their active co-promotion with nicotine as complementary components of multisubstance ‘stacks’: combinations of performance-enhancing substances consumed together for alleged mental or physical benefits.