4.8/5 based on 2,500+ reviews

Repair the skin barrier with Peptides & stop the itch.

The Only formula with Peptides that attack allergies from both sides, skin and immune system at the same time.

2k+
Dogs Helped 🐶
4.72
Average Rating ⭐
60 Day
Guarantee ✅
Improvement in 60 Days or Your Money Back—No Returns Needed

Why Choose Us

Fast & Free Shipping

Get your orders delivered quickly with our reliable shipping service.

24/7 Customer Support

Our dedicated team is here to help you anytime, day or night.

60-Day Money Back

Not satisfied? Get a full refund within 30 days, no questions asked.

What Our Customers Are saying...

Real experiences from real customers who love our products and service.

Excellent 4.8/5 based on Expert reviews

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The Research Gap

For years, veterinary professionals noticed a disconnect: dogs with seasonal allergies and chronic itchiness were often managed with short-term symptom relief, but there were fewer daily support options focused on helping maintain the skin barrier from the inside out.

Our team of veterinary scientists and formulators created K9 Allergy & Itch Relief to address this gap — combining research-informed bioactive peptides with skin-support ingredients in a powder format dogs can easily enjoy with their meals.

We're not here to replace veterinary care. We're here to provide dog owners with a research-informed option for supporting calmer skin, reduced itch-related discomfort, and healthier coat quality as part of a complete approach to allergy and skin wellness.

Is Your Dog Not Acting Like Themselves Anymore?

Watching your best friend struggle with confusion, restlessness, or behavior changes can be heartbreaking. K9 Biolabs NeuroClean System is specially formulated to support cognitive health, promote calmness, and help your dog feel happy, engaged, and like themselves again.

Peaceful Nights, No More Pacing

Peaceful Nights, No More Pacing

Support healthy sleep-wake cycles and calm evening behavior.

Cognitive Clarity & Recognition

Cognitive Clarity & Recognition

Support mental alertness and environmental awareness.

Mental Energy & Engagement

Mental Energy & Engagement

Support healthy brain metabolism and daily vitality.

Excellent

4.8 out of 5

Allergy & Itch Relief with Peptides

$49.97
Reduces Itching & Scratching
Rebuilds Broken Skin Barrier
Promotes Healthy Skin & Coat
⁠Powered by bioactive peptides


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Collagen Peptites: Clinically Proven Pet Allergy Relief

Collagen Peptides: The Missing Piece Behind Your Dog's Allergy Cycle

Your dog loses up to 10% of their collagen every year after age 2. When the skin barrier breaks down, allergens get in. The itch starts. You treat it. It settles. But the barrier is still broken — so the itch comes back. Collagen is what breaks the cycle.

But the skin barrier is only half the story. Most itchy dogs have two problems at once: a broken skin barrier letting allergens in from the outside, and a damaged gut lining letting them in from the inside. Fix one without the other — and the itch keeps coming back.

That's why Allergy by K9 BioLabs works on both.

From the inside — healing the gut:

  • Probiotics rebalance gut bacteria and crowd out yeast that triggers skin reactions
  • L-Glutamine repairs the gut lining so allergens stop leaking into the bloodstream
  • Organic Pumpkin + Bone Broth feed the microbiome and soothe digestion
  • Omega-3s + Turmeric + Ashwagandha reduce inflammation and calm an overreacting immune system

From the outside — rebuilding the skin:

  • Quercetin blocks the histamines driving scratching and paw licking
  • Collagen Peptides activate skin cells to rebuild the barrier faster than it breaks down
  • Vitamin E + Biotin restore coat shine and elasticity
  • Glucosamine + MSM + Hyaluronic Acid cushion inflammation in deeper skin layers

What you'll notice:

  • Weeks 2–3: Scratching starts to slow
  • Weeks 4–6: Skin calmer, coat begins to shine
  • Weeks 8–12: Barrier fully rebuilt, lasting results
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Cellular Energy For Aging Neurons

Collagen peptides are the structural proteins that maintain your dog's skin barrier when depleted, allergens penetrate more easily, triggering chronic itch, inflammation, and immune overreaction. Research shows skin barrier breakdown is one of the primary drivers of allergic sensitization in dogs, with studies indicating sensitization increases up to 40% in dogs with disrupted gut flora.

Allergy provides mCollagen Peptides to restore skin integrity, Quercetin, nature's antihistamine, to regulate histamine release at the cellular level, Omega-3 fatty acids to reduce skin inflammation, and a 6-strain Probiotic Blend to rebalance the gut-immune axis that controls your dog's allergic response.*

At Last: Premium, Science-backed, Allergy Relief For Your Dog

Allergy is a science-backed powder formulated to stop chronic itch and skin inflammation in allergic dogs—helping bring back the playful runs, the belly rubs, and the comfort you both deserve

K9 Biolabs Vs. "The Other Guys"

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Used And Recommended By Veterinarians

"I see dogs every week dealing with seasonal allergies, constant scratching, paw licking, and irritated skin. What owners often want is a daily support option that helps their dog feel more comfortable without making mealtime complicated. K9 Allergy & Itch Relief is easy to mix into food, and I like that it’s designed to support the skin barrier from within while helping reduce itch-related discomfort. For dogs with recurring skin sensitivity, I would absolutely consider it as part of a complete allergy and skin wellness routine."

- Dr. A. Usman (DVM,PhD)

Why Is Our Guarantee Policy So Generous?

Here at K9 BioLabs, we offer one of the best guarantees you'll find anywhere:

If you don't LOVE the results you get from K9 Allergy & Itch Relief within 60 days, simply let us know for a full refund — giving you a full two months to see the difference in your dog’s scratching, licking, skin comfort, and coat health.

We offer this policy for a few reasons. First of all, because we believe in the science behind our peptide-based formula and we’ve seen how meaningful daily skin-barrier support can be for dogs struggling with seasonal allergies, paw licking, irritated skin, and constant itchiness.

In addition, we continue to offer this guarantee because we believe it helps support our mission of helping dogs feel more comfortable in their own skin — so families can enjoy calmer days, better rest, and more happy moments with the dogs they know and love.

Frequently Asked Questions

Everything you need to know, right at your fingertips.

What does Allergy & Itch Relief With Peptides do for dogs? +

It is your dog's all-in-one health boost using 18+ human-grade ingredients! It uses the power and nutrients from 18+ natural ingredients to fill the gaps that kibble and other supplements can't. These missing nutrients help target joint support, skin and coat health, gut & digestive balance, immune support, and even stress reduction, helping your dog live its happiest, healthiest life—all in one tasty scoop.

How long does it take to work? +

Many pet parents notice improvements in energy, digestion, and itching in as little as 7–14 days.

You’ll start noticing major improvements in 4-6 weeks. But remember, every dog is unique—some may feel benefits even sooner!

We ask you give at least 6-8 weeks since it may take a little long depending on severity of the issues.

How much should I give my dog? +

** Each bag contains 60 scoops

Serve on top or mix with dry or wet food.

Dog’s Weight | Servings / Day

0-15 lbs | ½ Scoop
15-30 lbs | 1 Scoop
30-70 lbs | 2 Scoops
71+ lbs | 3-4 Scoops

Are there any side effects? +

Our formula is made with 99.9% active, human-grade ingredients and zero fillers, making it safe for daily use.

Most dogs experience only positive results like better digestion, less itching, and more energy.

As with any new supplement, a small number of dogs may experience mild digestive changes as their system adjusts — this usually passes quickly.

If your dog has known sensitivities or you're unsure, we always recommend checking with your vet!

Will my picky eater like it? +

Yes! It is made with beef bone broth and real beef liver powder and pumpkin for a natural, irresistible flavor. Even the pickiest pups lick their bowls clean — no force-feeding or hiding pills needed.

Can this replace other supplements? +

Yes — that’s the beauty of Allergy & Itch Relief with Peptides. It combines joint, skin, gut, allergy, and immune support into one simple scoop, saving you time, money, and clutter from juggling multiple products.

⁠Does it work for all breeds and sizes? +

Yes! It is formulated for dogs of all ages over 3 months, sizes, and breeds.

From energetic puppies to senior dogs, just follow the recommended serving size by weight for safe daily support.

What if my dog doesn’t like it or I don’t see results? +

We stand by every scoop. If you’re not fully satisfied — or if your dog refuses to take it — just reach out within 60 days, and we’ll make it right with a hassle-free refund.