Removes 98% Of Active Cat Allergens!

Introducing our Cat Allergen Neutralizing Spray, which proactively shuts down accumulated allergens.

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 engineer specialized allergen neutralizing proteins that can bind to and neutralize these cat allergens!

We added these allergen neutralizing proteins 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 the allergen neutralizing proteins to work their 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 allergen neutralizing proteins that have the remarkable ability to exclusively bind to Fel d 1 without affecting cats or people.

Through a binding mechanism only possible because of the allergen neutralizing protein'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.

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 our allergen neutralizing proteins 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.

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