Glisera™ NasalShield

Glisera™ NasalShield is a daily iodine nasal spray formulated with Potassium Iodide and Fulvic Acid. It works at the nasal gateway — where 97% of respiratory viruses enter your body.

Unlike supplements that work systemically after germs are already inside, NasalShield helps cleanse and support your nasal passages directly at the point of entry. Think of it as brushing your teeth — but for your nose.

Supplements like elderberry, zinc, and vitamin C work systemically — meaning they try to boost your immune system after germs have already entered your body. They're reinforcing the house after someone's already inside.

NasalShield works locally at the nasal entry point — helping to cleanse and protect nasal passages where airborne viruses and bacteria actually land. It's the difference between locking the back door and defending the front door.

Yes. Iodine has been used safely as an antiseptic in medical settings for over 100 years — in wound care, surgical preparation, and hospital protocols worldwide.

NasalShield is formulated at a gentle, effective concentration designed specifically for daily nasal use. Safety studies on similar iodine nasal formulations have shown no clinically significant iodine absorption with short-term use.

That said, if you have a known iodine allergy or thyroid condition, we recommend consulting your healthcare provider before use.

If you have a thyroid condition (such as hyperthyroidism, hypothyroidism, Hashimoto's, or Graves' disease), please consult your healthcare provider before using NasalShield.

While NasalShield uses topical application (not ingestion) and is formulated at a low, safe concentration, we believe in full transparency and always recommend medical guidance for individuals with thyroid sensitivities.

NasalShield is formulated for adults and children over 12. For children under 12, we recommend consulting with your pediatrician before use.

We take child safety seriously. While iodine has a long history of safe topical use, pediatric nasal application requires appropriate dosing guidance from a healthcare provider who knows your child's health history.

If you are pregnant or breastfeeding, please consult your healthcare provider before using NasalShield.

We always err on the side of caution during pregnancy and nursing. Your doctor can assess whether NasalShield is appropriate for your individual situation based on your health history.

NasalShield is specifically formulated to be gentle enough for daily use. The Fulvic Acid in our formula acts as a natural anti-inflammatory and soothing agent, helping to reduce irritation and support comfortable application.

Unlike higher-concentration iodine solutions or DIY betadine rinses, NasalShield is designed at a low, effective concentration with a purified water base — so there's no harsh burning, no drip, and no unpleasant taste.

Some users may notice a mild sensation on first use that quickly fades.

Daily Routine: 1–2 sprays per nostril, morning and evening.

After Exposure: Use after school pickup, travel, crowded events, indoor gatherings, or being around sick family members.

During Cold & Flu Season: Use consistently from October through March for ongoing nasal hygiene support.

Tip: Tie it to a habit you already have — spray right after you brush your teeth. Most customers say it becomes second nature within a week.

NasalShield begins working immediately upon application — cleansing nasal passages and supporting your mucosal defenses right at the point of entry.

Most users report feeling cleaner, clearer nasal passages within the first few uses. For best results, we recommend consistent daily use for at least 2–3 weeks, especially during high-exposure periods like cold and flu season.

No. NasalShield uses Potassium Iodide and Fulvic Acid — completely different ingredients from intranasal zinc products like Zicam, which were recalled by the FDA due to reports of loss of smell.

Iodine has a well-established safety profile as a topical antiseptic spanning over 100 years of medical use. NasalShield is formulated specifically for gentle, daily nasal hygiene — it is not a zinc product.

We recommend starting with yourself first. When you stay healthy, you can take better care of everyone else — that's the whole idea behind breaking the domino effect.

Many customers eventually order for their partner or older children (12+) as well. We offer multi-pack bundles at a better per-bottle price for households that want to protect multiple family members.

Every NasalShield purchase is backed by our 60-Day Money-Back Guarantee. If you're not completely satisfied for any reason, contact us within 60 days for a full refund — no questions asked.

We stand behind NasalShield because we believe in what's inside the bottle. You have nothing to lose and everything to gain.

With regular daily use (1–2 sprays per nostril, twice daily), one bottle of NasalShield lasts approximately 30 days.

For best value and uninterrupted protection, many customers choose our subscribe & save option which delivers a fresh bottle on your schedule at a discounted price.

NasalShield is formulated and manufactured in a GMP-certified facility using pharmaceutical-grade ingredients. Every batch is tested for purity and potency to ensure you receive a safe, high-quality product.