This product is supplied in a 60ml bottle of zero nicotine e-liquid and a separate optional 10ml 18mg/ml Nicotine Shot. To make 3mg/ml Nasty Juice, add Nic Shot to the Nasty Juice bottle and then shake thouroughly. Nic Shot must not be vaped separately without Nasty Juice as the Nic Shot liquid is a pure unflavoured concentrate.