Health officials struggled to explain in plain language the difference between freebase nicotine and nicotine salt in vape products during a House hearing Monday, prompting sharp exchanges from lawmakers weighing possible tax Vape So, what exactly are those Nic salts you've heard about? Nicotine Salt, also known as Nic Salt, is a type of processed nicotine used in vape juice. Many vapers find Nicotine Salts vs Vape Juice: Key Differences Nic Salts vs Freebase Which is Better and Key Differences VSAVI E Liquids Vape Kits