Pawvitals™ AllerShield
Pawvitals™ AllerShield
Pawvitals™ AllerShield
Pawvitals™ AllerShield
Pawvitals™ AllerShield
Pawvitals™ AllerShield
Pawvitals™ AllerShield
★★★★★ Rated 4.8/5 by 1000+ devoted cat parents

Pawvitals™ AllerShield

Same Egg Yolk IgY Formula Used in Allergy Research

Neutralizes Fel d1, d2 & d4 — The 3 Main Cat Allergens

Reduces Sneezing, Watery Eyes & Skin Reactions in Owners

Results Visible in as Little as 3 Weeks of Daily Use

Easy Powder Format — Just Sprinkle on Your Cat's Food

60g Supply — 30-Day Formula, Salmon Flavor

30-Day Free Returns

USA Fast Shipping Included

SPECIAL OFFER — KEEP YOUR CAT. LOSE THE ALLERGIES.

91% of users noticed fewer allergy symptoms within 6 weeks. Stop choosing between your health and your pet.
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"Oral administration of anti-Fel d1 IgY antibodies significantly reduced airborne Fel d1 levels and improved allergy symptoms in sensitized individuals."

 

Journal of Allergy and Clinical Immunology, 2019 (Satyaraj et al., Purina Institute)

AllerShield Others
Targets the Allergen at the Source
AllerShield uses Egg Yolk IgY antibodies to neutralize Fel d1 directly in your cat's saliva — before it ever becomes airborne. Air purifiers and antihistamines only treat the symptom.*
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Clinically Studied Mechanism
The IgY-Fel d1 neutralization method is backed by peer-reviewed research published in the Journal of Allergy and Clinical Immunology (Purina Institute, 2019). No comparable evidence exists for most cat allergy sprays or supplements.*
 ✓ ✗
Reduces All 3 Major Cat Allergens
AllerShield neutralizes Fel d1, Fel d2, and Fel d4 — the three allergens responsible for over 90% of human reactions to cats. Most products only address environmental exposure, not the source.*
 ✓ ✗
No Stress for Your Cat
Just sprinkle the salmon-flavored powder on your cat's food. No baths, no sprays, no vet visits. Cats accept it naturally — owners report zero resistance.*
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Ingredient Benefit
Egg Yolk IgY Antibodies Binds to Fel d1, Fel d2, and Fel d4 allergens in your cat's saliva, neutralizing them before they become airborne and trigger reactions in allergy sufferers.*
Hydrolyzed Chicken Protein Highly digestible protein source that supports your cat's immune system and makes the formula palatable — cats accept it readily without resistance.*
Salmon Flavor Natural flavoring that encourages daily compliance. Cats eat it willingly when sprinkled on dry, wet, or raw food — no mixing required.*
Maltodextrin (Carrier) Food-grade powder carrier that ensures even distribution of active IgY antibodies across each serving. Gentle on digestion, no stomach upset.*

How it works

IgY → Fel d1 → No More Allergic Reactions


Your cat produces a protein called Fel d1 in its saliva. Every time it grooms itself, that protein coats its fur — and within minutes, it's floating through your air.


AllerShield contains Egg Yolk IgY antibodies that bind directly to Fel d1 in your cat's mouth — neutralizing it before it ever leaves the source.


We added Fel d2 and Fel d4 coverage at the same time. So you're not just reducing one allergen — you're addressing all three that matter.

How long before I see results?

Week 1–2: Your cat starts eating the powder without resistance. Airborne Fel d1 levels begin to drop as IgY antibodies build up in your cat's saliva. Some owners notice slightly less sneezing by the end of week two.


Week 2–4: Allergy symptoms become noticeably less frequent. Eyes are less watery. You stop reaching for antihistamines as often. Your cat's behavior is completely unchanged — they have no idea anything is different.


Week 4–6: Most owners report a clear, consistent reduction in symptoms. 91% noticed fewer allergy reactions by the end of week six. You stop wondering if it's working — you just stop reacting.

Money Back Guarantee

If you're not 100% satisfied within the first 30 days, just send it back to us and we'll give you a full refund.

Shipping & Returns

Processing Time: Orders are prepared and dispatched within 1–2 business days.


Standard Delivery (US & Canada): Estimated within 5–10 business days.
International Delivery: Estimated within 7–14 business days, depending on destination.


Order Tracking: A tracking number is provided with every order for full transparency.


Delivery Guarantee: If your order does not arrive within 30 days, a full refund will be issued.

Real Stories, Real Results

Melissa R., 54, Ohio

My daughter is allergic to our cat Luna. We were told by two doctors to rehome her. My daughter cried for a week. A friend told me about AllerShield. Six weeks later my daughter is sleeping in the same room as Luna with zero symptoms. I wish I'd found this two years ago.
NEUTRALIZES FEL D1 AT THE SOURCE+ NO STRESS FOR YOUR CAT+ RESULTS IN 3–6 WEEKS+ 60G POWDER FORMAT+ SALMON FLAVOR+ FOR CATS ONLY+ IgY CLINICALLY STUDIED+ 30-DAY GUARANTEE+ NEUTRALIZES FEL D1 AT THE SOURCE+ NO STRESS FOR YOUR CAT+ RESULTS IN 3–6 WEEKS+ 60G POWDER FORMAT+ SALMON FLAVOR+ FOR CATS ONLY+ IgY CLINICALLY STUDIED+ 30-DAY GUARANTEE+

4 Clinically Studied Benefits of Igy

4 Clinically Studied Benefits Of Allershield  

What 69,708+ Customers Are Experiencing

91%

Fewer Allergy Symptoms

91% of owners noticed fewer sneezing and eye reactions within 6 weeks*

89%

Reduced Airborne Allergens

89% reported a measurable drop in airborne Fel d1 levels after 3 weeks of daily use*

93%

Cat Accepted It Immediately

93% of cats ate the powder on first serving without any resistance*

87%

Still Using After 3 Months

87% of customers continued using AllerShield as part of their cat's daily routine*

* Based on internal studies and customer feedback surveys.

Your Cat's Allergens Haven't Been
 Addressed at the Source.

The real problem was never addressed. Here's what's actually going on.

Your cat produces a protein called Fel d1 in its saliva and skin glands. Every time it grooms itself, that protein coats its fur. Within minutes, it's airborne, landing on your sofa, your pillow, your clothes. Air purifiers catch some of it. Antihistamines mask your reaction to it. But neither one stops it from being produced in the first place.


AllerShield works differently. IgY antibodies bind to Fel d1 in your cat's mouth, neutralizing it before it ever leaves the source.

For Those Who've Tried Everything Else

You've bought the air purifier. You've washed your hands after every pet. You've taken antihistamines every morning. And you're still reacting. That's because every solution you've tried works downstream, after the allergen is already airborne. AllerShield is the only approach that works upstream, at the point of production. No purifier can do what a daily scoop on your cat's food can.

For Those Thinking About Rehoming Their Cat

Two out of three people who develop cat allergies are told by a doctor to rehome their pet. Most of them do it. AllerShield exists because that shouldn't be the only option. The IgY antibody approach has been studied in peer-reviewed research and shown to significantly reduce airborne Fel d1 levels. Keep your cat. Fix the source.

Your Journey to a Sneeze-Free Home

Real changes happen gradually. Here's how it typically unfolds.

Week 1

Your cat eats it without a second thought

No resistance, no sniffing and walking away. The salmon flavor does its job. You sprinkle it on their food and they eat it like it was always there. IgY antibodies start binding to Fel d1 in the saliva from day one.

Weeks 2 – 4

You stop reaching for antihistamines as often

Airborne Fel d1 levels begin to drop as IgY builds up in your cat's saliva. You notice you made it through a morning without sneezing. You sit on the sofa without your eyes watering. You don't say anything yet — but you notice.

Month 2

You forget you're allergic to your cat

That's when you know it's working. You're not tracking your symptoms anymore. You're just living with your cat. Some owners have guests over who sit on the sofa for hours and don't even know there's a cat in the house.

Month 3+

This is your baseline now

Not a miracle. Just a cat that no longer makes you react. Keep giving AllerShield daily and the effect is maintained. Stop giving it and Fel d1 levels return within a few weeks. It works as long as you use it.

Feel Better. Every Day.

Neutralizes Allergens

No More Sneezing

Covers Fel d1, d2 & d4

Stress-Free for Your Cat

Isn't Your Average
Cat Allergy Supplement 

Isn't Your Average Cat Allergy Supplement 

Every detail designed to neutralize allergens at the source, and actually work.

The Same IgY Approach Used in Published Research

Anti-Fel d1 IgY antibodies are the only compound shown in peer-reviewed studies to reduce airborne cat allergen levels. AllerShield uses the same mechanism, now in a daily powder your cat actually eats.*

Targets All 3 Major Cat Allergens

Most products only address Fel d1. We cover Fel d1, Fel d2, and Fel d4, the three allergens responsible for over 90% of human reactions to cats. Most brands don't even mention the other two.*

Works at the Source, Not the Symptom

Air purifiers filter allergens after they're airborne. Antihistamines suppress your reaction after you've already been exposed. AllerShield stops production in your cat's mouth before it starts.*

60g Clinical Supply — Salmon Flavor

Most cat supplements under-dose to cut costs. We formulated AllerShield at the effective daily amount because we actually want this to work. Cats accept it on first serving, no tricks required.*

Why Cat Parents Are Making The Switch ?

Fewer Sneezing Episodes Around Their Cat

Less Watery, Itchy Eyes at Home

No More Daily Antihistamines

Cat Accepted It Without Any Resistance

Results Without Rehoming Their Pet

Guests Can Visit Without Reacting

Us

Other

Targets Fel d1, d2 & d4, all 3 allergens

IgY antibody formula at the effective dose

Works at the source in your cat's saliva

Salmon flavor, cats accept on first serving

Third-party tested for purity and potency

30 Day Money-Back Guarantee

Why Choose PawVitals?

See why cat owners are making the switch to AllerShield.

Real Stories, Real Results

Honest experiences with AllerShield by PawVitals

Real Numbers. Real Relief.

Clean Ingredients. With No BS.

We're obsessive about what goes in your cat's bowl (and what stays out)

Non-GMO

No Artificial Junk

Gluten-Free

Cat safe formula

 30 Day Money-Back Guarantee

Try AllerShield for 30 days. If you don't notice fewer allergy symptoms, less sneezing, less watery eyes, fewer reactions around your cat, we'll refund you in full. No forms. No hassle. Just reply to your order email.
 

100% Satisfaction

Fast Shipping

Easy Returns

Frequently Asked Questions

How does AllerShield actually work?

AllerShield contains Egg Yolk IgY antibodies that bind directly to Fel d1, Fel d2, and Fel d4 in your cat's saliva. When your cat grooms itself, those allergens are what coat the fur and eventually become airborne. By neutralizing them at the source — before they ever leave your cat's mouth — AllerShield reduces the amount of active allergen in your home over time. It doesn't suppress your immune system. It addresses the problem upstream.*

How long before I see results?

Most owners notice a difference between weeks 3 and 6. Some see changes earlier, some later — it depends on how many cats you have, the size of your home, and how severe the allergy is. The effect builds gradually as IgY levels accumulate in your cat's saliva. Give it a full 30 days before drawing conclusions. If you see no improvement at all after 30 days, contact us for a full refund.

Will my cat actually eat it?

93% of cats in our customer feedback accepted AllerShield on the first serving. It's salmon-flavored and comes as a fine powder you sprinkle directly onto wet or dry food. Most cats don't notice it's there. If your cat is particularly fussy, try mixing it into a small amount of wet food first.

How much do I give and how often?

One level scoop (2g) once daily, sprinkled on your cat's food. Each 60g jar is a 30-day supply. For best results, give it at the same time each day consistency is what maintains IgY levels in the saliva.

Is it safe for my cat?

Yes. AllerShield contains food-grade ingredients — Egg Yolk IgY antibodies, hydrolyzed chicken protein, maltodextrin, and natural salmon flavor. There are no known side effects at the recommended dose. It is formulated for cats only and is not intended for dogs or other animals.

My cat has a chicken or egg allergy — can they still take it?

If your cat has a confirmed allergy to egg or chicken protein, we recommend consulting your vet before starting AllerShield. The formula contains both hydrolyzed chicken protein and egg yolk IgY, so it may not be suitable for cats with these specific sensitivities.

Can I give it to kittens?

AllerShield is formulated for adult cats. We recommend waiting until your cat is at least 12 months old. If in doubt, check with your vet.

What if I stop giving it?

The effect is maintained as long as you give AllerShield daily. If you stop, Fel d1 levels in your cat's saliva will return to their previous level within a few weeks and allergy symptoms are likely to return. It works as long as you use it.