
pick


Les 4 bénéfices du produit
- From age 3: the simplest option for children in this ranking
- 100% natural, filtered sea water, no preservatives
- Anti-reflux valve keeps the solution protected after opening
- CE-marked medical device sold in pharmacies
- No essential oils, so no fresh aromatic feeling
- Price varies between pharmacies; no direct sale by the brand
About Stérimar Nez Bouché
Stérimar is a French brand of sea water nasal care made by Sofibel - Laboratoires Fumouze. The Nez Bouché (blocked nose) spray belongs to its cold range.
It is a hypertonic solution: its salt concentration is higher than that of the body's cells. The manufacturer recommends it for colds, rhinitis and acute or chronic sinusitis, to quickly decongest the nose and clear even thick mucus.
Composition
- 100% natural sea water from the Bay of Cancale, filtered
- Hypertonic solution enriched with copper
- Preservative-free
How to use it
The manufacturer recommends 2 to 6 sprays per day in each nostril. The nozzle suits both children and adults, and the anti-reflux valve prevents contamination after opening.
Price and where to buy
Sold in pharmacies in 50 ml, 100 ml or 2 x 100 ml. Price seen on 10/11/2026: €6.08 for 100 ml at Cocooncenter (France). Prices vary between retailers.
Our view
The most versatile option in this ranking: sea water without essential oils, usable from age 3. For a family-friendly spray, it is our first choice. This medical device is a regulated health product: read the leaflet and ask your pharmacist.
LMC content is written by our editorial team from the information published by the brands. Scores out of 10 follow a public grid of 5 criteria*, supplemented by LMC’s editorial assessment.
To support LMC, some links are affiliate links: LMC earns a commission at no extra cost to you, and some of the brands featured are partners. By using the site, you accept our terms of use and our editorial policy.
The complete brand review

Amoseeds

⚡ You may be interested in these dietary supplements
Our 5 rating criteria and commitments
LMC scores out of 10 are based on a public grid of 5 criteria, supplemented by LMC’s editorial assessment. Our content is written by the editorial team from the information published by the brands.
Verifiable formulation and dosages (35%)


Proven quality and traceability (20%)
Price per dose (20%)
Consumer reviews (15%)

Guarantees and service (10%)
Regular updates
Affiliate links and partners disclosed

LMC partner brand 💛
LMC partner: Mush n Go’s Brainstoorm mushroom coffee, the highest-dosed in our comparison.
.avif)

pick






.webp)