Nasal Care
Isotonic Seawater Nasal Spray: Gentle Daily Nasal Hygiene from 3 Months
Isotonic seawater sprays are the everyday essential of nasal care. What “isotonic” means, who these sprays are for, how to use them, and what to look for when adding one to a range.
Every day, around 8 cubic meters of air pass through our nasal passages, carrying dust, pollen, pollution particles and microbes. The nose filters them, and it does so better when it is kept clean. An isotonic seawater nasal spray is the simplest way to do it: a gentle, natural rinse suitable for the whole family, from babies over 3 months to adults.
What does “isotonic” mean?
A solution is isotonic when its salt concentration is close to that of the body’s own fluids. Sprayed into the nose, it neither draws water out of the nasal mucosa nor floods it: it moistens, loosens secretions and helps flush them out. That is why isotonic sprays are the reference for daily nasal hygiene, while hypertonic sprays are used to decongest (see our guide to hypertonic seawater nasal sprays).
In the HYPOMER® range, natural seawater is diluted with purified water to reach isotonicity: the formula contains 31.82% natural seawater, with no preservative and no synthetic additive.
Why natural seawater rather than simple saline?
A standard saline spray is a mixture of water and sodium chloride. Natural seawater keeps the full spectrum of marine minerals and trace elements, such as magnesium, calcium and manganese, which support the natural sweeping action of the nasal cilia and the cleansing of the nasal cavity.
Neomedis sources its seawater in Cancale Sud, Brittany, in waters rated A by IFREMER, and purifies it by cold triple micro-filtration (0.1 µm) rather than by heat or radiation, to preserve these minerals. Discover where our seawater comes from.
Who is an isotonic seawater nasal spray for?
- Babies and young children, who cannot blow their noses yet: a gentle spray helps clear the secretions that block the nose.
- People living in cities, exposed every day to pollution, dust and fine particles.
- Allergy seasons: rinsing the nose helps eliminate pollen and other allergens.
- The whole family, every day: during colds, in dry or polluted air, or simply as part of a daily hygiene routine.
HYPOMER® SOFT and HYPOMER® BABY
| HYPOMER® SOFT | HYPOMER® BABY | |
|---|---|---|
| Type | Isotonic seawater | Isotonic seawater |
| Composition | 31.82% natural seawater, purified water | 31.82% natural seawater, purified water |
| For | Babies over 3 months, children and adults | Babies over 3 months, children and the whole family |
| Format | 100 ml, preservative-free | 100 ml, preservative-free |
Both formulas are 100% natural and come in a pressurised bag-on-valve spray that can be used in any position and delivers a fine, continuous mist. See the product sheets of HYPOMER® SOFT and HYPOMER® BABY, or the whole nasal hygiene range.
For daily protection, the ZYLOMER® DEFEND and ZYLOMER® BABY formulas combine seawater with xylitol: read how a xylitol nasal spray works.
How to use an isotonic nasal spray
- Tilt your head to one side and gently insert the nozzle into the upper nostril.
- Press quickly and firmly: 1 to 3 sprays per nostril.
- Tilt your head to the other side and repeat in the other nostril.
- Straighten your head to let the mucus drain, then blow your nose or wipe with a tissue.
- Repeat 2 or 3 times a day, and wash the nozzle with warm water after each use.
Not for babies under 3 months. Use should be limited to one person. In case of doubt or if symptoms persist, consult a healthcare professional.
The cornerstone of a nasal care range
For pharmacies and distributors, the isotonic seawater spray is the product customers come back to all year round. HYPOMER® SOFT and HYPOMER® BABY are available for distribution, and their formulations can also be used for a private label seawater nasal spray manufactured in France. Become a distributor or preview your own brand with the simulator.
Frequently asked questions
Can an isotonic seawater nasal spray be used every day?
Yes. It is designed for daily nasal hygiene, usually 1 to 3 sprays per nostril, 2 or 3 times a day.
From what age can HYPOMER® SOFT and HYPOMER® BABY be used?
From 3 months of age. They are not intended for babies under 3 months.
Should I choose an isotonic or a hypertonic spray?
An isotonic spray is for daily cleansing and hydration of the nose. A hypertonic spray is for decongesting a blocked nose, from 3 years of age. Our article isotonic vs hypertonic seawater nasal sprays compares them in detail.
Does it contain preservatives?
No. The bag-on-valve system keeps the seawater sealed away from air and propellant, so the formula needs no preservative.
