All CBD tinctures – whether oil based or alcohol based – are intended for sublingual use because CBD can absorb through the skin and mucus membranes.

You’ll use a CBD tincture by placing several drops under the tongue and holding the tincture there for up to one minute. The CBD enters the bloodstream through the sublingual artery and travels from there to the carotid arteries. After holding the tincture under your tongue for one minute, you can swallow it. Any CBD remaining in the tincture is processed by the digestive system.

One of the reasons why CBD oil tinctures are so popular is because sublingual absorption is one of the fastest ways to get CBD into the system. When you place CBD oil under the tongue, the CBD begins to enter your bloodstream within seconds. When you swallow a CBD product, on the other hand, absorption through the digestive system can take up to two hours.

An additional benefit of CBD oil tinctures is that the sublingual absorption bypasses the first-pass metabolism of the liver. When you consume any supplement or medication orally, your liver breaks down a portion of the active ingredient, rendering it inert before it can reach your bloodstream. The liver doesn’t metabolize CBD when you use it sublingually, though, so more of the CBD is available for your body to use.

Source: OKCBD