Ingredient profile
Bromelain Benefits for Sinuses: What the Research Shows in Breathizen
Bromelain is a pineapple enzyme and the third of Breathizen's five ingredients. It has the most research of the five: small trials suggest it may help acute sinusitis when added to standard care. NCCIH still says the evidence is too thin to recommend it. The amount per dose is not published, and pineapple, latex or pollen allergies matter.
Written by the Breathizen editorial teamUpdated
The enzyme
What is bromelain, and where does it come from?
Bromelain is a group of protein-digesting enzymes taken from the pineapple plant. It is the only enzyme among Breathizen's five ingredients.
The sales page lists it third, as "Bromelain Powder." It is the one ingredient in the spray with clinical trials tied to the nose and sinuses. That makes it the closest link between the formula and its breathing comfort pitch.
Why the pineapple source matters
Because bromelain comes from pineapple, people allergic to pineapple can react to it. Some people with latex, wheat, celery or grass pollen allergies can react too (RxList, Bromelain). No other Breathizen ingredient carries an allergy list this long.

Label facts
Bromelain in Breathizen at a glance
| Label name | Bromelain Powder |
|---|---|
| Scientific name | Enzyme from Ananas comosus |
| What it is | Pineapple enzyme |
| Position in the list | 3 of 5 (as listed on the sales page; no amounts or weight order are published) |
| Per dose | Not published |
| Amount used in research | No established dose; used alongside standard care in sinusitis trials |
| Strength of evidence | Limited (sinusitis) |
| Traditional or marketed use | Enzyme studied for nasal swelling |
| Main caution | Allergy risk (pineapple, latex, pollen); bleeding risk with blood thinners; stop 2 weeks before surgery. |
Dose
How much bromelain is in a daily dose of Breathizen?
It is not published, and there is no established dose to compare it with (RxList, Bromelain). The sinus trials gave bromelain by mouth at set amounts, alongside standard medicines.
Bromelain products often state enzyme activity as well as weight, because two powders of equal weight can differ in strength. Breathizen states neither. So you cannot tell whether one 4-pump dose holds a trace of enzyme or a trial-sized amount. Our Breathizen product label review lists the other missing details.
Research
Bromelain for sinuses: what do studies show?
Small trials suggest oral bromelain may ease acute sinusitis when added to standard care. A 2006 review found three such trials with some positive results, but judged the overall evidence limited (Guo et al., 2006).
| Source | Finding |
|---|---|
| Guo et al., 2006 | Three add-on trials in acute sinusitis with some positive findings; evidence limited (Guo et al., 2006) |
| Leelakanok et al., 2023 | Meta-analysis of 54 studies: may be effective for sinusitis; side effects were mild (Leelakanok et al., 2023) |
| NCCIH | Not enough high-quality research to recommend oral bromelain for sinusitis (NCCIH, Bromelain) |
| RxList | Insufficient evidence; may reduce nasal swelling with standard medicines (RxList, Bromelain) |
Two limits stand out. The trials used bromelain tablets swallowed at known doses, not a spray. And none of them tested Breathizen. Even so, bromelain sits ahead of the other four ingredients on evidence, as the meter shows.
Safety
Bromelain side effects and drug interactions
Bromelain seems well tolerated, with stomach upset and diarrhea the most common complaints (NCCIH, Bromelain). The 2023 review also noted gas, nausea and headache, and found no major health risks reported (Leelakanok et al., 2023).
Medicines to check
- Blood thinners: bromelain may increase bruising or bleeding, so it should not be combined with them (MSKCC, Bromelain).
- Tetracycline antibiotics: bromelain may raise their levels in the body (MSKCC, Bromelain).
- Amoxicillin: listed as an interaction by RxList (RxList, Bromelain).
Two more Breathizen ingredients, ginger and cordyceps, carry bleeding cautions as well. The Breathizen side effects page puts all five side by side.

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Order nowWho should skip it
Who should skip bromelain?
Skip it if you are allergic to pineapple, and ask a doctor first if you react to latex, wheat, celery or grass pollen. Allergic reactions to bromelain have been reported (MSKCC, Bromelain).
Stop bromelain at least 2 weeks before a scheduled operation (RxList, Bromelain). Tell your surgeon about every supplement you take.
- Anyone pregnant, nursing or under 18, as the sales page warns.
- People with a bleeding disorder, given the bruising risk.
Compare
Breathizen vs taking bromelain on its own
If bromelain is the ingredient you care about, a single-ingredient product is closer to what the trials used. Breathizen trades that precision for a one-step routine with four other botanicals.
Points for Breathizen
- One short daily routine with no pills to swallow.
- Bromelain plus four other named ingredients in one bottle.
- A 60-day window from the date of purchase.
Points for bromelain alone
- Swallowed tablets match the form used in the sinus trials.
- A Supplement Facts panel shows weight and often enzyme activity.
- One ingredient is simpler to clear with your doctor.
Bottom line
Is bromelain the strongest part of Breathizen?
Yes, on evidence it is, but the bar is low: small add-on sinus trials and a cautious NCCIH. The amount in the spray is unknown, and the allergy and bleeding cautions are the most serious of the five.
The other four
How does bromelain fit with the rest of Breathizen?
Bromelain is third on the list, after mullein and ginger and before lemon and Cordyceps militaris. Read the full comparison on the Breathizen ingredients page.
FAQ
Bromelain benefits: common questions
Does bromelain thin blood?
It is not a blood thinner, but it may increase bruising and bleeding. Memorial Sloan Kettering advises against taking it with blood thinners such as warfarin. That matters in Breathizen, where ginger and cordyceps carry similar cautions, so ask your doctor first if you take any anticlotting medicine.
Does bromelain help with swelling?
It may help with nasal swelling, according to RxList, but only when used with standard medicines, and the evidence is rated insufficient. Bromelain is often marketed for swelling after injuries or surgery; for breathing, the support is limited to small sinus trials with tablets, not sprays.
Is bromelain from pineapple?
Yes. Bromelain is a mix of enzymes taken from the pineapple plant. That is why anyone allergic to pineapple should avoid it. People allergic to latex, wheat, celery or grass pollen can also react, so check with a doctor or allergist before using Breathizen.
Does bromelain help with sinus congestion?
It might, as an add-on to standard care. Three small trials in acute sinusitis reported some benefit, and a 2023 meta-analysis said bromelain may be effective. NCCIH still finds the research too thin to recommend it. Breathizen has not been tested for sinus problems.
What are bromelain benefits for allergies?
No strong evidence shows bromelain eases hay fever or other allergies. Its research centers on sinusitis. Bromelain can also cause allergic reactions of its own. For pollen allergies, saline rinses, allergy medicines and nasal sprays have much better support.
What are bromelain's benefits and side effects?
The main studied benefit is a possible easing of acute sinusitis when added to standard care. Side effects are usually mild: stomach upset, diarrhea, gas, nausea and headache. Allergic reactions and bleeding risk are the more serious concerns.
Does bromelain work better as a pill or a spray?
Nobody knows, because the sinus trials used swallowed tablets and no study has tested a bromelain spray. Breathizen sprays its five ingredients into the mouth, but that form has not been compared with tablets for bromelain or any of the others.
Who wrote this
Written and reviewed by
Plain-language pages built from the label, the sales page and linked public health sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by an authorized U.S. shop, not by the manufacturer. We earn money when you buy through our order links.
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Side effects
Side effects for each of the five ingredients, the medicines they can clash with, and allergy checks.
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Cordyceps
Cordyceps militaris in Breathizen: a cultivated mushroom with mixed exercise studies, no lung trials and several cautions.
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Breathing comfort guide
Causes of congestion, habits with real evidence, warning signs and a 4-week plan to breathe easier.
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