Unrefined, cold-pressed coconut oil (often labeled “virgin” or “extra virgin”) is the best type for oral care. The key reason is lauric acid, a fatty acid that makes up about 50% of regular coconut oil and is responsible for its ability to kill harmful bacteria in the mouth. Fractionated coconut oil, the liquid kind sold in pump bottles, has most or all of its lauric acid removed during processing and won’t give you the same benefits.
Why Virgin Coconut Oil Works Best
Coconut oil’s oral health benefits come almost entirely from lauric acid, which breaks down bacterial cell membranes and disrupts the biofilms that form plaque on your teeth. Virgin coconut oil preserves this compound because it’s extracted without high heat or chemical solvents. It’s the solid, white oil that melts around 76°F and has a mild coconut smell.
Fractionated coconut oil stays liquid at room temperature because manufacturers strip out the longer-chain fatty acids, including lauric acid, to create a thinner product better suited for skin care and cooking. While it’s still coconut-derived, it doesn’t offer the same antibacterial activity for your mouth. Refined coconut oil (sometimes labeled “RBD” for refined, bleached, deodorized) falls somewhere in between. It retains some lauric acid but may contain fewer beneficial compounds overall due to processing. If you can’t find virgin, refined is a distant second choice. Fractionated is not worth using for this purpose.
What Oil Pulling Actually Does
Oil pulling is the practice of swishing coconut oil in your mouth for an extended period. The oil binds to bacteria and pulls them off tooth surfaces and gum tissue. A study published in The Journal of Contemporary Dental Practice found that two weeks of coconut oil pulling reduced levels of Streptococcus mutans, the primary bacterium behind tooth decay, by about 23%. That’s close to the 26% reduction seen with chlorhexidine, a prescription-strength antimicrobial mouthwash commonly used in dental offices.
A separate clinical trial found that coconut oil pulling inhibited plaque regrowth at rates comparable to chlorhexidine, with similar scores for gum inflammation and bleeding. The oil pulling group also had significantly less tooth staining than the mouthwash group, which is a known drawback of chlorhexidine use.
These results are promising, but they position oil pulling as a supplement to brushing and flossing rather than a replacement. It reduces bacterial load and plaque buildup, but it doesn’t deliver fluoride or physically scrub away tartar the way a toothbrush and dental cleaning do.
Does Coconut Oil Whiten Teeth?
There’s no clinical evidence that coconut oil whitens teeth in the way peroxide-based products do. The American Dental Association has specifically noted the lack of credible evidence for coconut oil whitening, including the popular social media trend of mixing it with turmeric. What some people notice is that oil pulling removes surface stains from coffee, tea, or wine by dissolving the oily film bacteria create on enamel. This can make teeth look slightly brighter, but it won’t change the underlying color of your enamel.
How to Oil Pull
The technique is simple but takes some getting used to. Scoop about one tablespoon (15 mL) of solid virgin coconut oil and place it in your mouth. Let it melt for a few seconds, then swish it gently around your teeth and gums for 15 to 20 minutes. You don’t need to swish vigorously. A relaxed, gentle motion works fine and prevents the jaw soreness or headaches that some people experience in the first few days.
Most people oil pull first thing in the morning on an empty stomach, before brushing. It pairs well with a morning routine since you can do it while showering or getting ready. When the time is up, the oil will look milky and thin. Spit it into the trash, not the sink. Coconut oil solidifies at cooler temperatures and will clog your pipes over time. Rinse your mouth with warm water afterward, then brush your teeth as normal.
Swallowing the oil isn’t dangerous, but it can cause stomach upset or diarrhea since it’s now loaded with bacteria you just pulled from your mouth. If 15 minutes feels like too much at first, start with 5 and work your way up.
What to Look for on the Label
When shopping, these terms on the jar indicate you’re getting the right product:
- Virgin or extra virgin: There’s no regulated difference between these two for coconut oil. Both mean minimally processed with the lauric acid intact.
- Cold-pressed: Extracted without high heat, which preserves more of the beneficial fatty acids and antioxidants.
- Unrefined: Has not been bleached or deodorized. It will have a light coconut flavor and smell.
- Organic: Optional, but ensures no pesticide residues from coconut farming.
You don’t need a special “oral care” or “pulling oil” product. A standard jar of virgin coconut oil from the cooking aisle is identical to what’s sold in specialty wellness packaging, often at two or three times the price. The oil is the same. Plain, food-grade virgin coconut oil is all you need.
Oils to Avoid for Oral Use
Fractionated coconut oil (often sold as “liquid coconut oil” or MCT oil) won’t harm you, but it lacks the lauric acid that makes oil pulling effective. Coconut oil blends that mix coconut with other carrier oils dilute the active compounds. Flavored or scented coconut oils designed for body care may contain additives you don’t want in your mouth. Stick with pure, single-ingredient virgin coconut oil, and you’re covered.