Salt nic vape juice uses nicotine salts instead of freebase nicotine. Nicotine salts are smoother and more easily absorbed into the bloodstream, allowing for higher nicotine concentrations without harshness. This makes salt nic juices ideal for those who prefer a stronger hit or are transitioning from smoking. Unlike regular vape juice, which often has lower nicotine levels and can be harsher at high concentrations, salt nic provides a more satisfying and smoother experience. It's great for devices with lower wattage and MTL (mouth-to-lung) setups.