Sapphyre Nicotine Packs are a simple and easy to use concentrated nicotine solution that can be added to any eliquid.  THIS IS A NIC ADDITIVE - TO ADD TO E-LIQUIDS. THIS IS NOT E-JUICE.  Sapphyre Nic has a calculator on their website to calculate which packets and how many to add to certain bottle sizes and etc. Click the link below if you need the calculator! Sapphyre Nicotine Calculator  (Outside of Vaping Delights)