Nasal strips do work for what they’re designed to do: they physically hold your nostrils open wider, reducing airflow resistance by roughly 9%. That’s enough for most people to notice easier breathing through the nose. But their usefulness depends entirely on what you’re trying to fix. They can help with simple snoring and make breathing feel easier during exercise, but they won’t treat sleep apnea, and their effect on congestion-related sleep quality is surprisingly weak.
How Nasal Strips Open Your Airway
A nasal strip is a small adhesive bandage with a stiff, springy splint embedded inside it. When you press it across the bridge of your nose, the splint tries to straighten back out, pulling your nostrils open from the outside. This targets the nasal valve, the narrowest point inside your nose, located about 1.3 centimeters inside each nostril.
The strip does two things at once. It physically widens the air passage, and it stiffens the outer nasal wall so it’s less likely to collapse inward when you inhale. That second effect matters more than you’d think. When you breathe in forcefully, the faster-moving air inside your nose creates a slight vacuum (the same physics that lets airplane wings generate lift), which can pull soft nasal tissue inward and partially block the airway. A strip resists that pull. In testing, strips lowered nasal resistance from an average of 5.5 to 5.0 cm H₂O/Lps, and the improvement was equal during both inhaling and exhaling.
Effectiveness for Snoring
Simple snoring, the kind not caused by sleep apnea, is where nasal strips have their strongest evidence. In a study of 35 habitual snorers whose sleep tests confirmed they did not have apnea, bed partners reported statistically significant decreases in snoring after the snorers wore strips at night. Participants also reported less mouth dryness and less daytime sleepiness.
The key distinction is “simple” snoring. If your snoring comes from nasal narrowing or mild nasal wall collapse, a strip can make a real difference. If the source of snoring is deeper in the throat, such as a relaxed soft palate or enlarged tonsils, a strip on the outside of your nose won’t reach the problem. Many people snore for multiple reasons at once, which is why strips reduce snoring for some users but don’t eliminate it entirely.
Why They Don’t Help Sleep Apnea
Obstructive sleep apnea happens when the airway collapses repeatedly during sleep, typically at the level of the throat, not the nose. A clinical study tested nasal strips on patients with confirmed sleep apnea and found zero change in the number or severity of apnea events, even though patients did score improved nasal breathing. Ninety percent of the sleep apnea patients reported their daytime sleepiness was unchanged.
This is the most important limitation to understand. Nasal strips are not a treatment for sleep apnea. If you snore heavily and experience daytime fatigue, gasping during sleep, or pauses in breathing that a partner has noticed, those are signs of a condition that needs proper evaluation rather than an adhesive strip.
The Congestion Question
Many people reach for nasal strips when they’re stuffed up from a cold or allergies, hoping to sleep better. The evidence here is mixed and honestly a bit disappointing. Two large, double-blind trials tested Breathe Right strips against placebo strips in people with chronic nighttime nasal congestion who reported trouble sleeping. In one trial, there was no significant difference between real strips and placebo on sleep quality or feeling refreshed in the morning. In the second trial, there were some improvements at the one-week mark, but the overall conclusion was that strips did not clearly outperform placebo.
The researchers noted a strong placebo effect: people wearing fake strips also reported sleeping better. That doesn’t mean the strips are useless for congestion. Physically widening the nasal passage still lets more air through regardless of swelling. But when congestion is caused by swollen tissue deep inside the nose, a strip pulling on the outside may not overcome enough of the blockage to meaningfully improve sleep.
Performance Benefits for Athletes
Athletes have been wearing nasal strips since they became visible in professional sports in the 1990s, and the research tells an interesting split story. Strips consistently improve the subjective experience of breathing during exercise. In one study, 84% of athletes using a nasal dilator rated their fatigue perception as “low” compared to just 10.5% without any device. That’s a dramatic difference in how hard the effort feels.
The objective cardiorespiratory numbers, however, are less consistent. Heart rate and blood oxygen levels typically don’t change with a strip on. Some studies in adolescent athletes have found improvements in maximal oxygen uptake and nasal breathing time, particularly in athletes who also had allergic rhinitis. A study of triathletes found that nasal dilators improved nasal breathing time and nasal oxygen uptake during exercise. But other studies show no measurable change in cardiorespiratory performance despite improved nasal patency.
The practical takeaway: if breathing through your nose feels like a bottleneck during training, strips can make the experience more comfortable and may let you sustain nasal breathing longer. Whether that translates to a faster race time is less certain.
Internal vs. External Dilators
External adhesive strips aren’t the only option. Internal nasal dilators are small plastic or silicone clips that sit inside the nostrils and push them open from within. Both types work by expanding the nasal valve’s cross-sectional area, and studies comparing the two show similar results for reducing snoring and improving airflow.
The main differences are practical. Internal dilators tend to score higher on user preference in studies, possibly because they’re invisible and don’t require adhesive on the skin. External strips are simpler to use and don’t involve inserting anything into your nose. In athletes, both types improved sport performance, but the internal dilator was significantly more appreciated. Either type is a reasonable choice, and neither has a clear clinical advantage over the other.
How to Place Them Correctly
Placement makes a real difference in how well a strip works. The target is just above the point where your nostrils flare outward, roughly halfway down your nose. Stand in front of a mirror and find where the nasal sidewalls begin to curve out. Center the strip horizontally across the bridge at that point, with the ends resting on the sides of your nose but not extending onto your cheeks.
Placing the strip too high, near the bony bridge between your eyes, puts it above the nasal valve where it has no tissue to pull open. Placing it too low, on the soft fleshy tip, misses the structural cartilage that the strip needs to act on. Your skin should be clean and dry before application. Oily or moisturized skin weakens the adhesive and lets the strip shift during the night.
Skin Irritation and Practical Limits
Nasal strips are classified as Class I medical devices, the lowest-risk category. The most common complaint is skin irritation from the adhesive, particularly with nightly use over weeks or months. Pulling the strip off in the morning can also irritate sensitive skin. Wetting the strip before removal helps loosen the adhesive.
Clinical safety studies have been conducted in adults 18 and older. Breathe Right’s labeling recommends the product for ages 5 and up, but the published clinical data is limited to adult populations. People with latex allergies should check ingredient lists, and anyone with broken skin, sunburn, or active rashes on the nose should avoid strips until the skin heals.
The biggest practical limit isn’t safety but expectations. Nasal strips address one specific, mechanical problem: a narrow or collapsible nasal valve. They don’t reduce inflammation, treat infections, shrink swollen turbinates, or correct a deviated septum. If your breathing difficulty comes from deeper structural issues, strips may offer partial relief at best. For persistent nasal obstruction that doesn’t respond to simple measures, the underlying anatomy may need evaluation.