Our Science
Putting Science First:
Developing Safe and
Efficient Allergen Solutions
From Laboratory to Solution:
We invested $2 Million into our innovations, empowering our talented scientists to discover breakthrough solutions in allergen research.

01 Discover
In the heart of the Andes, Alpacas thrive in part thanks to a unique adaptation - their immune systems produce single-domain antibodies, a class of tiny yet powerful proteins that are adept at neutralizing threats like viruses and allergens.

02 Design
Inspired by Alpacas' unique immune system, we developed WhiskerBlock, a technology that precisely targets and binds to Fel d 1, the primary cat allergen. Its innovative structure, featuring three specialized flexible loops, transforms allergenic tetramers into non-reactive monomers.

03 test
After production, we use advanced facilities and thorough testing to ensure every product is safe and high-quality.

Step 1
The proteins undergo a proprietary purification process that maintains their structural integrity.

Step 2
We employ gamma ray treatment to minimize microbial contamination and enhance product purity.

Step 3
After production, we use advanced facilities and thorough testing to ensure every product is safe and high-quality.
04 Results

Removes 98% Of Active Cat Allergens
Today, we proudly present our innovative solutions to help you neutralize allergens and enjoy life with your pets.
Cat Spray
- 97% felt relief and could breathe easier around cats
- 96% found that their cat was not bothered by Pacagen
- 80% started seeing positive results from Pacagen within 1 week of using it
Cat Food Topper
Inspired by our Cat Allergen Neutralizing Spray, Pacagen's Cat Food Topper contains our patent-pending allergen neutralizing proteins so that cat owners with allergies can rest easy around cats.
SHOP NOWCustomer-Verified Efficacy
★ ★ ★ ★ ★ Based on 382 reviews
- Stuffy Nose
- Itchy or Watery Eyes
- Coughing
- Stress
- Sleep Issue
- Hives and Rashes
Our Scientists
Led by our expert team of scientists, Pacagen delivers premium allergy solutions through innovative technology.

Dr. Evan Zhao
PhD in Chemical Engineering, Princeton University

Dr. Siyang Han
PhD in Molecular Biology, Princeton University

Dr. Andrew Findlaytor
Doctor of Veterinary Medicine, University of California, Davis

Dr. David Zhang
PhD in Engineering Sciences, Harvard University

Dr. Yang Li
PhD in Chemical and Biomolecular Engineering, Northwestern University
Explore Our
Science-Backed
Product
SHOP NOW
FAQs
Allergens are harmless proteins that your body has misidentified as harmful. For cats, the allergen they produce is called Fel d 1.
Our Allergen Neutralizing Powders are engineered to be highly specific and only target the allergen it was designed to bind to. Through internal testing, we are certain that our neutralizing proteins cannot bind to anything else.
We combat allergies in an innovative way by using our alpaca-inspired protein technology. Our neutralizing proteins resembles small fragments of antibodies, which are an important part of all immune systems. These proteins have highly specific receptors that bind to target allergens. For cat allergies, the major allergen is Fel d 1. We’ve designed our proteins to target and break down any Fel d 1 in their vicinity. These proteins bind to Fel d 1, simultaneously disguising it from your immune system and breaking it down. As a result, your immune system does not detect a threshold level of active Fel d 1, preventing your allergies from being triggered.
Our allergen neutralizing proteins resemble a conventional antibody, an important protein in all immune systems. Our proteins are roughly a tenth the size of a conventional antibody, so it can fit into smaller spaces and more easily bind to different allergens. Although humans don’t naturally produce our proteins as a part of their immune process, camelids (such as alpacas) can! We create a blueprint for these proteins by leveraging an alpaca's immune systems in the lab, enabling us to further use our neutralizing technology for a wide range of applications without requiring any additional samples. Many researchers across the world are already using similar technologies in a variety of settings, including therapeutics, diagnostics, and imaging, so you can be assured that they are safe to use.
Definitely! We made sure to use a pet-friendly approach when creating our formulas. Each ingredient was hand-picked to be safe for everyone involved, whether four-legged or not. However, it's best to avoid spraying directly onto cats – cats usually don't like getting wet. Additionally, the allergen-neutralizing proteins are always manufactured to food-grade standards.
Allergen Neutralizing Powders
- WhiskerBlock
- Sodium Chloride
- Glycine
- Leucine
- Morning Glory Scent
- English Lavender Scent
- Sodium Benzoate
- Potassium Sorbate
- Silica
Stabilizing Solution
- Distilled water
- Glycerol
- Ethylhexylglycerin
- Phenoxyethanol
- Sodium Chloride
- Glycine
- Leucine
- Acetic acid buffer (at pH 5.7)
Cat Food Topper
- Dried Chicken Bone Broth
- Dried Fermentation Biomass
- Natural Flavor
- Fructooligosaccharide
- Yeast Culture
Our products use the latest developments in biotechnology to provide you with a safe, pure, and environmentally friendly way to manage your allergies. We developed a protein-based technology that can neutralize up to 98% of Fel d 1, whereas comparable products on the market are only able to neutralize up to 50% of Fel d 1. We conduct a rigorous testing to make sure that all our products are both safe to use and non-invasive to you & your pet’s routine.
Please email us at support@pacagen.com and we'd be more than happy to help answer any questions you may have!