Nicotine is naturally found in tobacco plants. E-juice manufacturers use pure, isolated nicotine in their e-juice. To stabilize the nicotine base, e-juice manufacturers that make salt vape juice add acids to it. This makes the e-juice smoother and lasts longer. It also allows for more flavors.
Nicotine is addictive. The body can absorb it in ten seconds. To replicate the nicotine from cigarettes, vapers should begin with a high dose of nicotine. They should then reduce their nicotine intake until they stop using it altogether. If you want to purchase salt nic, then you can check out the web.
Salts don't contain diacetyl. Although there were concerns that vapers might be using e-juice containing diacetyl in their vape, the industry has since stopped using it. The same goes for nicotine salts. Diacetyl, an organic substance, must be added to juice, just like VG and PG. E-juice makers do not use it because it isn't naturally found.
It all depends on what the person means by "vape." Salte-juices work well with low-power pod devices. This is exactly how most all-in-one devices intended to use them when they created the formula. Mods and tanks with sub-ohm ratings can vape nic salts, provided that the content is below average.
Sub-ohm devices would work well with 3-5mg of nic salt juice. A higher amount would cause nicotine high. This is because the high-wattage unit produces too much vapor.