Custom Health Guide

Citricidal® nasal spray

We prefer this brand because…...

Grapefruit seed extract is a potent antifungal and possible antibacterial, and this reliable brand is sufficiently concentrated to be effective. The antifungal effects of Citricidal® nasal spray have addressed the cause for many of our patients with chronic sinusitis or nasal congestion. In 1999 the Mayo Clinic found that 96% of patients with chronic sinus symptoms have an underlying fungal infection. We like the purity of this brand, as there have been reports of over-the-counter grapefruit seed extracts being contaminated with preservatives or bacteria. Citricidal® nasal spray also lubricates nasal passages for people living in dry climates or indoors with air conditioned or heated air. It is easy to use: with your head upright, cover one nostril and depress the pump completely twice, inhale deeply to bring the fine mist into your nose, then repeat for the other nostril. Use once or twice daily, wipe the nozzle after each use.

About grapefruit seed extract nasal spray

Chronic sinusitis with symptoms lasting three months or longer is the most common chronic disease in the US, (versus acute sinusitis caused by bacteria, which lasts a month or less). In September 1999 Mayo Clinic researchers announced that they'd found the root cause of most chronic sinus infections: an immune system response to fungus. Grapefruit seed extract targets fungus by disrupting cell walls so that the cell contents leak out.

For hundreds of patients with chronic sinusitis, new methods of testing nasal samples revealed fungus in 96 percent of the patients’ mucus. There were high eosinophils, white blood cells that are part of the allergy process: the immune system sends eosinophils to attack fungi and the eosinophils irritate nasal membranes. The extra mucus and swelling of nasal linings cause chronic congestion, inflammation and itching. As long as fungi remain, so will the irritation. This research was confirmed by the ENT University Hospital sinus center in Graz, Austria, and the National Institute of Health awarded Mayo Clinic a $2.5 million grant to further investigate the immunologic response to fungi.

A total of 40 different kinds of fungi were identified in test patients, with an average of 2.7 kinds per patient. Thousands of kinds of fungi (molds and yeasts) are found throughout the world, and spores, the reproductive parts, become airborne like pollen. Antibiotics do not help because they target bacteria, which are not the cause of chronic sinusitis. The mainstream treatments anti-histamines and steroid sprays cause significant side-effects.

Grapefruit seed extract also contains antioxidants including flavonoids, vitamin C, tocopherols, citric acid, limonoids, sterols, and minerals. Studies showed the flavonoid naringin may be excellent for lowering plasma lipids.


2 puffs provide: citrus grandis grapefruit seed extract (Citricidal®), and sodium chloride.

Other Ingredients: Water, glycerin (vegetable).

Free of: - This product does Not contain: artificial coloring, artificial flavoring, preservatives, paraben,egg, ingredients of animal origin, shellfish, gluten, wheat, yeast, salt, soy, sugar, corn


Always take natural remedies under the supervision of your health care provider. Do not use Citricidal® without the advice of your physician if you are taking blood-thinning medication, immunosuppressants or antihistamines. Stop Citricidal® five days before surgery as it may increase bleeding times. Do not use Citricidal® during pregnancy or nursing without medical guidance.


Free shipping for purchases of $40 and over

1 fluid oz

Benefits of Consistency

“With the right vitamins, herbs and foods, your health can continue to improve over time, as vibrant new tissues replace old cells. Our patients often feel increasing vitality as medical tests get better and better, year after year.”

- Dr. Rachelle Herdman

Dr. Herdman is a graduate or member of the following organizations:

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