Sublingual (abbreviated SL), from the Latin for "under the tongue", refers to the pharmacological route of administration by which substances diffuse into the blood through tissues under the tongue. This lets the medicine get absorbed through the tissue that lines the mouth and go straight into the bloodstream.

When absorbed sublingually, CBD bypasses the digestive system and processing of the liver therefore, the effects of CBD oil are not decreased by digestion. Sublingual application allows CBD to quickly enter the bloodstream and interact with the endocannabinoid system.
The sublingual glands lie directly under the mucous membrane covering the floor of the mouth beneath the tongue under a slight fold called a sublingual papilla, from which the ducts of the submandibular salivary glands open. The sublingual gland is a salivary gland produces saliva that people rely on daily. Saliva is important to lubricate your mouth, help with swallowing, protect your teeth against bacteria, and aid in the digestion of food. This gland plays an important role in keeping your mouth healthy.
Sublingual forms of drugs have their advantages. Because the medication absorbs quickly, these types of administration can be important during emergencies when you need the drug to work right away, such as during a heart attack. Additionally, compared to commonly used tablets, capsules and other oral dosage forms, sublingual absorption is generally much faster and more efficient. The percent of each dose absorbed is generally higher than that achieved by means of oral ingestion.

In general, sublingual medication is placed under the tongue and allowed to disolve or be absorbed directly int the bloodstream. Howevver, in regards to CBD, a dropper-full of cbd oil is placed underneath ther tongue and held for at least a minute before swallowing. When taking anything sublingually it might feel a little weird or gross, however, this allows it to absorb in your bloodstream.
Caution: Before taking any sublingual medication including CBD products, it is important that you check the specific product usage document and seek outside medical advice before using anything internally.
