CBD oil drops can be infused into food or ingested via mouth using the provided dropper. As against just swallowing the oil, it is best to take them sublingually. In other words, hold it under your tongue for 1-2 minutes before swallowing. This method allows the sublingual gland and mucous membranes of the mouth to absorb the greater part of the CBD before swallowing. This way, the CBD does not travel through the stomach and reaches the bloodstream faster. The onset of this method's effect is typically 30 minutes to an hour, but it lasts around 8–12 hours.
Since CBD lasts longer, you may only need to take it 1-2x per day. By implication, if you plan on taking CBD every single day, then a high-concentration, long-lasting sublingual drops may be a perfect choice. CBD oil drops may also be added to foods, but since the content is typically ingested, the onset effect takes much longer.