Juul uses nicotine salts, where as standard vape juice is just freebase nicotine. The salts are said to be 'milder' or easier to consume. In the US, vape juice

Juul uses nicotine salts, where as standard vape juice is just freebase nicotine. The salts are said to be 'milder' or easier to consume. In the US, vape juice comes in 0, 3 and 6mg/mL doses. Juul does not publish nic levels, but its probably closer to 48+mg/mL.