Our Cat Allergen Neutralizing Spray

removes 98% of active cat allergens

Breathe Easier With Pacagen

★ ★ ★ ★ ★

"I can honestly say my symptoms have gone down substantially since using Pacagen. No more difficulties breathing before bed or sneezing when I'm sitting on the couch."

- Sylvia J.

Cat Allergen Neutralizing Spray Starter Pack

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12K+ bought all-time

Price
Regular price $66.00
Regular price Sale price $66.00
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Why It's Special:

  • Neutralizes 98% of cat allergens
  • Safe for pets and people
  • PhD Engineered, Veterinarian Approved
  • 30 day Money Back Guarantee

FAQs

Definitely! We made sure to use a completely pet-friendly approach when creating our formulas. Each part of the formula was hand-picked to be safe for everyone, four-legged or not, involved. However, it’s best to avoid spraying directly onto cats – mainly because cats usually don’t like getting wet. On top of that, WhiskerBlock is always manufactured to food-grade standards.

WhiskerBlock, being a protein, is by nature subject to degradation when dissolved in tap water, as minerals and impurities can disturb its structure. The Stabilizing Solution is formulated to preserve WhiskerBlock's structure as long as possible without hampering its neutralizing properties.

We don't currently make a scent-free version. However, the scents included in our Allergen Neutralizing Powder are very mild and are included in very small quantities. Most customers report that the scent is close to unnoticeable after spraying.

Our products use the latest developments in biotechnology to provide you with a safe, pure, and environmentally friendly solution to your allergies. Internal testing found that our allergen neutralizing proteins are capable of neutralizing up to 98% of Fel d 1. Other products on the market are only able to neutralize up to 50% of Fel d 1. On top of that, our products are incredibly safe to use and are non-invasive to you and your pet’s routine.

While undissolved, the Allergen Neutralizing Powder doesn't expire, but it is most effective within 1 month of dissolving in distilled water. However, if you dissolve the Allergen Neutralizing Powder in our Stabilizing Solution, it'll be effective for up to 2 months.

Spraying frequency depends on a lot of factors, including how much Fel d 1 your cat produces, how severe your allergies are, and how sensitized your immune system is. We recommend starting out by spraying once every 2 days, then increasing or decreasing the frequency depending on if your symptoms are still present.

We take pride in the fact that our sprays are designed with environmental consciousness in mind. Where possible, we use biological ingredients that have no long-term environmental impact. In fact, 99% of the ingredients in the powder are biodegradable! We also make sure that all of our partners share a similar commitment to environmental consciousness.

For orders within the contiguous United States, we offer 3-day and 5-day shipping options. To Hawaii & Alaska, orders can take up to 8 days to arrive.For orders to Canada, please allow up to 10 days for shipping, as CBSA processing times vary.

pick your symptom

★ ★ ★ ★ ★

My daughter didn't sneeze!

Every time my daughter would come visit our home, our 2 cats would make her sneeze. I tried the Pacagen spray on all the areas the cats like to lay (rugs, couch, chairs, etc.) and after only a few times, she said she felt much better. No more sneezing! I'm a believer!!

- K. Thousand

★ ★ ★ ★ ★

Fantastic product that really works

We had a person stay over for 3 nights in our house with 2 Siamese cats. She is highly allergic to cats. Not a sniffle, sneeze, itchy eyes. NOTHING! Miraculous.

- K. Simons

★ ★ ★ ★ ★

It works!

Thanks to this spray I was able to have my friend over who previously couldn't visit without severely watery eyes. Now she can comfortably sit on my couch in the same room as my cat!

- K. Shaw

★ ★ ★ ★ ★

It worked!

My grandchild and son-in-law, both of whom are allergic to cats and are always uncomfortable in our house even with taking medication, spent ten days in our house with NO symptoms and without their meds. I sprayed before they arrived and every other day while they were here and never heard a sneeze or saw a teary eye.

- A. Cohen

★ ★ ★ ★ ★

Great product

I have 2 cats that I love, but one of them gives me allergies, and between seasonal and cat allergies I was dying, sneezing, coughing and swollen eyes :( but after a few weeks using this product my life has changed, no more sneezing and overall no more red, swollen eyes.

- C. Martinez

★ ★ ★ ★ ★

Great Relief

My husband's coughing and sneezing has greatly improved!!!

- J. Toscano

★ ★ ★ ★ ★

Works for 4 Cats!

You can hot mop your hard surfaces which helps but I was losing to the soft surfaces. Pacagen made a huge difference. It actually works. I love my cats. Pacagen has relieved quite a bit of allergies and stress. I don't worry about what to do if my kids have allergy. I feel confident no one will be shipped off to grandma's house over cat dander

- M. Haymier

★ ★ ★ ★ ★

An actual life saver!

I've used Pacagen for about a month now and have definitely noticed a difference in my allergies around my house. I like that the spray helps me target specific areas of the house, and compared to some other dander reducing sprays, has no strong invasive smell. The bottle is still going on strong and I'm happy to be more comfortable around my house!

- N. Ly

★ ★ ★ ★ ★

Surprisingly works

My spouse has severe allergies to cats but loves them. With this spray we can sleep with our two cats in our bed and she can sleep through the night with no issues.

- R. Roizin

★ ★ ★ ★ ★

Finally relief!!!

My partner has a cat and I couldn't ever go to their place. But not anymore! I bought the starter pack and walked into the apartment spraying everything. It went so well that I'm at their place all the time now. I can even tolerate the cat sleeping on the bed with us. This stuff is a game changer and I highly recommend!!!

- E. Marteal

★ ★ ★ ★ ★

Amazing life saver.

It really helped my sudden eczema reaction caused by cat allergens immediately. Life saver. This is enabling me to keep my fur babies, even in a studio where my cats often sleep with me. I take the spray to my friends' place with cats too and I can hang out just fine. Thank you!

- S. Nagano

★ ★ ★ ★ ★

Incredibly Helpful

I have only been using Pacagen for a short while and have already noticed a difference in my allergies. Use of Pacagen in combination with increased vacuuming have led to a noticeable positive effect when I use the spray and I have stopped having issues with rashes and stuffy noses caused by allergies to my cat.

- A. Bruno

As Featured In

"Existing treatments are invasive shots and pills that aren’t much help [...] But one start-up called Pacagen is finally changing all that"

"This spray works proactively to ensure symptoms never manifest

how it works

Cats produce an allergen called Fel d 1 in their saliva. This is what causes cat allergies.

We engineered WhiskerBlock that can bind to and neutralize these cat allergens!

We added WhiskerBlock into sprays for easy use. Simply spray in the air and on surfaces every 2-3 days.

The result: up to 98% of allergens are neutralized, which means less sniffles and more cuddles!

how to use it

Find areas in your house that cats frequent, such as the couch, the bedroom, or nearby litter box.

Spray these areas generously with our Allergen Neutralizing Spray and wait 10-15 minutes for WhiskerBlock to work its magic.

Repeat this process every 2-3 days based on symptoms to enjoy your newly discovered cat allergen-free life!

Why choose us?

kitten sitting next to a pacagen spray bottle
syringe in a hand
scattered pills

Pacagen Sprays

Allergy Shots

Allergy Pills

Non-invasive
Side-Effect Free
Immediate
Effective?
98%

60%1

43%2

the science behind pacagen

Our search for a better way to manage cat allergens began with an unexpected key player: alpacas! Inspired by their unique immune systems, we developed WhiskerBlock that has the remarkable ability to exclusively bind to Fel d 1 without affecting cats or people.

Through a binding mechanism only possible because of WhiskerBlock's unique structure, our products are able to reduce airborne Fel d 1 concentrations by up to 98%, making it the most effective cat allergen reducer available.our technology

A story rooted in love

Pacagen’s journey began with love at first sight. When Dr. Evan Zhao and Dr. Siyang Han welcomed their British Shorthair, Miaomiao, into their lives, their joy was quickly met with a challenge—Siyang’s allergies. Determined not to choose between her health and Miaomiao, Evan, a Ph.D. in Chemical Engineering from Princeton University, turned to his expertise. The discovery of WhiskerBlock provided the answer.

The result? A cat allergen spray, safe for pets and people. “Now, we can enjoy Miaomiao without worry—and that’s what I want for every pet family,” Evan shares.

Customer Reviews

Based on 386 reviews
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M
Mateo S.
Genuinely the only thing that works

My girlfriend loses her ability to breath, starts coughing, and sneezing. I got an air purifier, made sure to lint roll everything, and gave her allergy medication. None of those had much affect at all on her symptoms. However after spraying EVERYTHING in paca hen we noticed an IMMEDIATE improvement. Will be buying again. Most important note, the bottle lasts for about a month and a half before expiring.

Y
Yvette C.
Free at last!! Free at last!! THANK GOD, I'm Free at last!!

I was extremely surprised yet extremely grateful as well. This product has opened up a whole new door for me because of the severity of my allergies to my cats. Just like pretty litter!

C
CAT
Hoping for continued results.

It appears to be working. I am using the sprinkle on the Purina Live Clear and the spray. The humans with allergies seem to not be having any symptoms. I wish the spray came in smaller quantities as I only use it when they come and it only has a month shelf life once reconstituted.

J
Jodi
Works well, wish it came in a larger size

I have suffered from cat allergies for years but also know myself and I will always need a kitty companion in my life. In the past I have done allergy shots (time consuming and expensive), neti pot, Flonase, and daily OTC allergy meds. I was excited to try Pacagen. I do think it works well, my BIL has pretty severe allergies and recently visited without any complaints or symptoms. My only complaint is the size of the bottle and cost to keep up the routine every 2-3 days. We live in a two floor townhouse with a finished basement and have a very active 1.5 year old cat. Keeping up with the routine on his “most used areas” (most of the house) means we are going through two bottles a month which feels quite pricey. That said, we will probably try to keep up on it and will definitely have it on hand when we have family over.

M
Marykay B.
Helped a lot

this product has helped with my eye allergies. Thank you

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