Salt Nicotine was Introduced JUUL labs, Salt Nic users found it more satisfying compared to regular (freebase) nicotine. It is smoother than regular vape juice, and it allows you to vape a very high concentration of nicotine, while using less juice. This also makes them very cost effective.
You can normally find Salt Nicotine based ejuice in Concentration of 25mg/ml and 50mg/ml. Some Ejuice also come in 24mg/ml, 30mg/ml and 48mg/ml.
Just beware that nicotine salt based ejuice are optimized for lower-power devices, arounf 7W-15W such as pod systems and vape pens, Please don't use them with subohm vapes.
We at VapeNation PK have a wide range of Nicotine salt ejuice available, some of the Top brands all over the world. Browse through ur product range choose your desired flavour.