A 72mg nicotine solution is an ultra-high concentration of nicotine commonly used for DIY e-liquid mixing and tobacco product manufacturing. This potent liquid nicotine is typically diluted with other ingredients, such as propylene glycol (PG) or vegetable glycerin (VG), to create customized vape juices. Due to its high strength, it is intended strictly for experienced users and profe... https://mistervape.co.uk/collections/72mg-freebase-nicotine