CBD is available in a growing number of formulations, each offering a different way to incorporate cannabidiol into a daily routine. While CBD oil remains the most widely used option, interest in alternative delivery methods has increased in recent years. One example is CBD nasal spray, a product designed to administer cannabidiol through the nasal cavity.
But how does this method differ from more traditional CBD products? And what does current research tell us about intranasal administration? This article explores how CBD nasal sprays work, what scientists have discovered so far and what to consider when comparing different methods of taking CBD.
What is a CBD nasal spray?
A CBD nasal spray is a food supplement that delivers cannabidiol into the nose as a fine mist. Instead of being swallowed or placed under the tongue, the formulation comes into contact with the nasal mucosa, where it may be absorbed differently than oral products.
Nasal sprays have long been used for a variety of applications because the inside of the nose contains a dense network of blood vessels. This has led researchers to investigate whether cannabinoids such as CBD could also be delivered through this route.
Although CBD nasal sprays are still relatively new compared with CBD oils and capsules, they represent another option for people looking for an alternative way to use cannabidiol.
Why are researchers interested in intranasal CBD?
The route through which CBD enters the body influences how it is processed. When CBD is taken orally, it first passes through the digestive system and liver before reaching the bloodstream. During this process, a proportion of the cannabidiol is naturally broken down.
Intranasal administration bypasses much of the digestive tract. Because the nasal mucosa is highly vascularised, researchers have been investigating whether this route may influence the absorption of cannabinoids.
Current studies suggest that intranasal administration has the potential to deliver CBD differently from oral products. However, absorption depends on many factors, including the formulation itself, the dose used and individual physiological differences. For this reason, results from scientific studies cannot automatically be applied to every commercially available CBD nasal spray.
What does scientific research show?
Research into intranasal CBD is still in its early stages. Most published studies have focused on pharmacokinetics, examining how cannabidiol is absorbed, distributed and metabolised after administration.
Some experimental studies have reported higher bioavailability for intranasal CBD formulations compared with oral administration. Researchers have also observed that intranasal delivery may allow CBD to enter systemic circulation relatively quickly. These findings have generated interest in the potential of this administration route, but they should be interpreted with caution.
Many of the available studies have been conducted using experimental formulations or under controlled laboratory conditions. More clinical research involving larger groups of participants is needed before firm conclusions can be drawn about the practical advantages of intranasal CBD in everyday use.
How does a CBD nasal spray compare with CBD oil?
CBD nasal sprays and CBD oils both contain cannabidiol, but they differ in how they are administered.
CBD oil is usually placed under the tongue, where it is held briefly before swallowing. This method has been widely used for many years and remains one of the most common ways to consume CBD.
A nasal spray, on the other hand, is applied directly into the nostrils. Some people prefer this method because it is quick, convenient and easy to use throughout the day.
Neither method can currently be considered universally superior. Choosing between them often comes down to personal preference, lifestyle and the type of product someone feels most comfortable using.
What should you look for when choosing a CBD product?
Product quality plays an important role regardless of how CBD is administered. As the market continues to expand, consumers are encouraged to choose products from manufacturers that are transparent about their ingredients and production methods.
Independent laboratory testing is widely regarded as one of the most important indicators of product quality. These analyses help verify cannabinoid content and screen for contaminants such as heavy metals, pesticides and residual solvents. Clear ingredient lists, batch-specific certificates of analysis and transparent manufacturing practices can also help consumers make informed decisions.
Looking ahead
Interest in alternative CBD delivery methods continues to grow as research into cannabinoids develops. Intranasal administration represents one of several approaches currently being explored by scientists, alongside oral, topical and water-soluble formulations.
Although the available evidence is encouraging, much remains to be learned about how different CBD formulations perform in real-world settings. As new clinical studies become available, our understanding of intranasal CBD is likely to continue evolving.
References
-
Peralta F. et al. Intranasal Administration of Cannabidiol: Pharmacokinetic Evaluation and Bioavailability. International Journal of Pharmaceutics. https://pmc.ncbi.nlm.nih.gov/articles/PMC9215213/
-
Lochhead JJ, Thorne RG. Intranasal drug delivery to the central nervous system. Pharmaceutical Research. https://pubmed.ncbi.nlm.nih.gov/23116337/
-
Touitou E, Illum L. Nasal drug delivery. Drug Discovery Today. https://pubmed.ncbi.nlm.nih.gov/25787862/
