1. To open the bottle, press the cap down and unscrew completely. Place the cap on the spout and remove under 45° angle.
2. You can add nicotine directly in the bottle by pouring a nicotine booster to the level of your preferred strength. For simplicity, nicotine levels are marked on the bottle as shown in the image below.
3. The final step is to shake the bottle for 1 minute. Wait for 5 minutes before using. For the best results, wait 24 hours before use.