Bromelain for a blocked nose
Old, small trials; none of this product.
Clarity MD sells 500 mg of bromelain, an enzyme from pineapple stems, with 250 mg of quercetin, for noses that are blocked every morning. Short answer: a 2006 review pooled two trials in which bromelain, added to usual treatment for acute sinusitis, eased some symptoms, and called the evidence encouraging but limited. We found no trial of bromelain with quercetin for sinuses, or of Clarity MD.
How the evidence flows
Each claim (middle), the studies that tested it (left) — green found it, red found nothing — and the grade they add up to (right). Drawn from the same records as the grades below. Tap to open full size.
Bromelain for sinuses (Clarity MD) · evidence checked 2026-10-27
What the research shows
Grades are calculated from the studies listed, by fixed rules.
- Bromelain (pineapple-stem enzyme) eases sinus congestionEarly evidence
A 2006 review pooled two trials in acute sinusitis where bromelain, added to usual treatment, improved some symptoms; it rated the evidence encouraging but limited. A 12-person pilot without a control group reported better chronic-sinus scores. We found no trial of bromelain with quercetin for sinuses.
- Clarity MD’s 500 mg bromelain with 250 mg quercetin clears a blocked nose within daysNo real evidence
The ad said “If your nose slams shut every morning before your feet hit the floor — and you spend the first 20 minutes blowing, sniffing, and clearing your throat before you can function — / That’s not allergies…”
Clarity MD · Facebook ad, seen Oct 2026
We found no study of Clarity MD. The “within 3 days” line in its ad is a customer’s story, which is not evidence.