This article was co-authored by Aimée Shunney, ND. Dr. Aimée Gould Shunney is a Licensed Naturopathic Doctor at Santa Cruz Integrative Medicine in Santa Cruz, California where she specializes in women’s health and hormone balancing. She also consults with various companies in the natural products industry including CV Sciences, makers of PlusCBD Oil. Dr. Aimée educates consumers, retailers, and healthcare providers about CBD oil through written articles, webinars, podcasts, and conferences nationwide. Her work has been featured at the American Academy for Anti-Aging Medicine, the American Association of Naturopathic Physicians Conference, and on Fox News. She earned her ND from the National College of Naturopathic Medicine in 2001.
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CBD, or cannabidiol, is a natural compound found in hemp and marijuana plants. Unlike THC, the other active component in marijuana, CBD oil doesn’t cause a high. However, early research shows that it may have a variety of health benefits, such as reducing pain, anxiety, nausea, and insomnia.  X Trustworthy Source Harvard Medical School Harvard Medical School’s Educational Site for the Public Go to source While there are several ways to take CBD oil, one of the safest and most effective is to use a tincture that goes under your tongue.  X Trustworthy Source Consumer Reports Nonprofit organization dedicated to consumer advocacy and product testing Go to source Before using a CBD tincture, talk to your doctor about the best dosage and whether you can use it safely.
Most food and drink must take a ‘first pass’ through the liver, this removes toxins and breaks food into its component parts. Only about 4% of the original amount of CBD will make it through this and reach the bloodstream to be transported to cells for use. Because of the time it takes for your digestive system to process food, it can take between 30 minutes and 2 hours for that small amount of CBD to get to work.
If you do find this a problem, there are ways around it:
Placing substances under your tongue understandably sounds a bit odd because it’s not something we often do. So, what is it about this method that makes it so widely used?
Eating CBD is the least effective way to take it
Vaping is when specially prepared CBD oils are heated in a vaporiser until they form an inhalable vapor. The CBD can cross the thin, moist membranes in your lungs into your bloodstream. This means that the effects can often be felt within 10 – 20 minutes and up to 56% of the CBD can reach your blood for use in your body.
Dropping CBD under your tongue may not be the most effective method but it is a close second. It also has an advantage in how quick and easy it is.
The effectiveness of each method can be measured by the length of time it takes for you to feel an effect, and how much of the active ingredient reaches your bloodstream. The distance of this journey and the obstacles faced directly affect how effective each method is. Once CBD reaches your bloodstream it is unlikely to be broken down further and it will be transported to your body tissues.
The word ‘sublingual’ refers to the large blood vessel found under your tongue. When liquids are placed there, they can cross the thin membrane and enter your bloodstream. The speed with which this happens has played a key part in this method’s popularity.