A liquid nicotine supplement called Sapphyre Salt Nic is added to your vape juice. Any 0mg vape juice may be converted into 15 milliliters of 25mg or 45mg salt nic vape juice using these handy salt nic bottles. A pre-measured quantity of nicotine salts is included in the 15ml container of Sapphyre Salt Nic. Nicotine salts in PG are present in every bottle of nicotine additive.