The UK Tobacco and Related Products Regulations (TRPR) set two strict boundary conditions on nicotine: a maximum concentration of 20 mg/ml and a maximum pre-mixed container volume of 10 ml.
Unlike freebase nicotine, which possesses an alkaline pH of ~8.0 and produces severe throat irritation at high strengths, nicotine salts use pharmaceutical benzoic acid to reduce the pH to a mild 6.0 – 6.5. This allows 20 mg/ml to be inhaled smoothly with instantaneous delivery to neurological receptors in under 7 seconds.
Coil & Resistance Rule
Nicotine salts should NEVER be run on low-resistance sub-ohm cloud setups (>40W). They require tight mouth-to-lung coils between 0.8Ω and 1.2Ω firing between 12W and 18W. This delivers optimum nicotine satisfaction while consuming less than 2ml of e-liquid per day.
All formulation ratios and electrical ohm tolerances listed here are measured on calibrated oscilloscopes and laboratory analytical scales at our Soho location. Never exceed coil wattage ratings when using 20mg/ml salt formulations.
