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
Cat Allergen Neutralizing Spray Starter Pack
Cat Allergen Neutralizing Spray Starter Pack
Cat Allergen Neutralizing Spray Starter Pack
Cat Allergen Neutralizing Spray Starter Pack
Cat Allergen Neutralizing Spray Starter Pack
Cat Allergen Neutralizing Spray Starter Pack
Cat Allergen Neutralizing Spray Starter Pack
Cat Allergen Neutralizing Spray Starter Pack
Cat Allergen Neutralizing Spray Starter Pack

Cat Allergen Neutralizing Spray Starter Pack

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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
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Side-Effect Free
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Immediate
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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

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.

the love story continues

Customer Reviews

Based on 343 reviews
78%
(266)
20%
(68)
2%
(6)
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(1)
1%
(2)
R
Riley F.
Pecagen really works!! Highly recommend to all who struggle with allergies!

My sister in law visited for a few weeks during the holidays. She greatly struggles with severe cat allergies. I ordered Pecagen before her stay. I sprayed each area in my house once a day and started my 2 kitties on the food topper. I was worried that she would be miserable during her stay. She said that she was shocked, how she had almost no reaction to my cats. Normally, she would start sneezing and get itchy right away. She didn’t experience any of that. Her allergies were very mild and she hardly had any symptoms. She is considering getting a cat of her own now thanks to Pecagen!! I also had another friend over, who normally struggles with cat allergies and he didn’t notice anything. Pecagen is a complete game changer and really works! It is definitely worth the price. I cannot recommend it enough!

D
Debra C.
Great product works as advertised

I had cat 🐈‍⬛ scratch fever from one of my fur babies this summer- lasts up to 4months. A few short weeks later I had the flu and lastly Covid. Needless to say my summer wasn’t great. So unfortunately I developed allergies to my 2 cats, along with long Covid. This meant lots of coughing, phlegm in the morning and stuffy nose and runny eyes.

After using loads of products like air filters, essential oils and medications I have been using this spray product for several weeks. It has made a huge difference and improvement in my breathing and allergies that I ordered the product for their food. Fingers crossed 🤞 that this combination works for me.

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Donna D.
Very Helpful

After using the Pacagen product, my grandson who is allergic to my cat, was able to visit me for a few hours with out an asthma attack. However he is still unable to directly touch the cat. So please help other users understand that they should be cautious when in contact with a cat.

Hey Donna, thanks so much for your insightful review! Our number one priority is to make living comfortably as simple as possible, and we want to make sure all our customers are informed on how to best use our products. On that note, our product only reduces cat allergens where it's applied. For instance, if you apply it on a couch, then that couch can be considered a safe zone for allergens! This also means that applying it directly to a cat's coat is the best way to make physically touching the cat safe for allergic individuals. The tricky part though, as many cat owners know, is that cats don't like getting wet all that much. Instead, we've found that many of our customers have a lot of success spraying a pet brush with our product, and then grooming them with that!

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Anonymous
Cat allergies greatly diminished

With just one treatment a visiting relative had no immediate symptoms. Highly recommend.

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Dana W.
Made a noticeable difference

My son and his girlfriend have pretty serious cat allergies and they’re have two cats. They can’t be in the house for more than a few minutes without her asthma kicking in. I started adding Pacagen to my cats’ diet a week before they came for a visit and began spraying the day that they came. It made a big difference. They were able to be in the house for hours before they started having any allergy symptoms and it was not as bad as it usually is. They were very happy with the results. I will definitely be buying again for their next visit.

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