01Daily grooming
It starts with the cat
When a cat grooms, saliva-associated allergens are carried onto the coat. Source-side management is where the daily pathway begins.
OKCLEAR · CAT ALLERGEN SCIENCE
Science that keeps closeness on the table
OKCLEAR Keep the cat. Reduce the allergens.
OKCLEAR is a cat-allergen management brand built around egg-yolk IgY. It starts at the source in cat saliva and pairs with coat and home care to help reduce everyday allergen load. OKCLEAR is not a medicine for treating human allergy.
OKCLEAR 欧科畅 · a cat-allergen management brand for people and cats living together. The entries below cover products, articles, FAQ and inquiry.
A DAY WITH CATS
From one grooming session to every close moment
02Close contact
Attend to coat and dander
Brushing, petting and cuddling are the most natural moments between people and cats, and they make the coat an important management touchpoint.
03Shared living
Keep the home comfortable
Sofas, bedding, clothing and cat beds connect shared life. Home-side management extends the solution into the spaces you share every day.
1 day
Early indicator response
Under defined OKCLEAR product test conditions, target-allergen indicators changed in as little as one day
Fel d1–8
Broad-spectrum targeting
Core patent and technology work is arranged around Fel d1–8, extending management beyond a single target
Modular care
More practicable long-term management
Daily actions are combined across the source, the coat and household contact points
UNDERSTANDING CAT ALLERGY
What people call a cat-hair allergy is really about protein allergens carried by coat and dander
Cat allergens are mainly proteins, not hair itself. The best-studied is Fel d 1, present in cat saliva and skin secretions. Grooming coats the fur with saliva; once dry, the particles can become airborne and settle on sofas, bedding, carpets and clothing.
Cleaning up hair alone therefore does not end exposure. What needs managing is the whole pathway from the mouth to the coat and into the home.
Why not target Fel d 1 alone?
Fel d 1 is the best-studied core component, but cat allergy is not decided by one component alone. Fel d 2, 4 and 7 also contribute to different molecular sensitization profiles. A multi-target approach does not mean every home must handle eight components at once; it means R&D should not reduce real exposure to a single marker.
| Fel d 1 | Secretoglobin | Associated with salivary and sebaceous glands; the core component in cat allergy research |
|---|---|---|
| Fel d 2 | Serum albumin | Carries cross-species cross-reactivity significance; an important complement in component diagnostics |
| Fel d 3 | Cystatin | A supplementary component in the cat allergen profile, reflecting individual sensitization differences |
| Fel d 4 | Lipocalin | Mainly saliva-associated; can contribute to component sensitization in some people |
| Fel d 5 | Immunoglobulin-related | Broadens cat allergen identification beyond a single Fel d 1 pathway |
| Fel d 6 | Immunoglobulin-related | Used to build a more complete multi-component research and testing framework |
| Fel d 7 | Lipocalin | Related to part of the respiratory sensitization profile; a focus of the broad-spectrum strategy |
| Fel d 8 | Latherin-like protein | Completes multi-target coverage of the Fel d allergen family |
ABOUT OKCLEAR
So allergy no longer stands between people and cats
The brand was started by a team with a Zhejiang University pet-nutrition research background.
The starting point is simple: people who love cats should not be forced to choose between closeness and comfort.
We connect molecular target research, IgY ingredient development, pet nutrition, dosage-form translation, cleaning care and real household use.
For China and global markets, we provide bilingual brand expression, a product portfolio, technical dossiers and channel training support.
30亩
Site area
10,000㎡
Building area
4,000㎡
Phase one area
Production runs through a co-manufacturing system.
MANUFACTURING
Standardized production across seven pet-nutrition dosage forms
Production runs through a co-manufacturing system covering powders, staple food, grooming and cleaning formats.
AUTOMATED LINE
Managed from raw material to packaging
Standardized clean workshops, fully automated lines, low-temperature airflow micronizing and microwave sterilization equipment.
QUALITY CONTROL
62 tested indicators with HPLC configuration
Testing covers composition, microorganisms and heavy metals, with data recorded for every raw-material and finished batch to enable traceability.
R&D PLATFORM
Zhejiang University pet-nutrition research background
Ragdoll observation conditions support in-vivo verification; core formulations and preparation processes are the subject of patent filings around Fel d1–8, covering broad-spectrum IgY antibody preparation, product formulations and application methods.
HOW IGY WORKS
From identification to neutralization, then whole-home management
IgY is an antibody found in egg yolk. Published in-vitro research shows anti-Fel d 1 IgY can bind the protein and reduce measured active Fel d 1. OKCLEAR places this mechanism into a daily route cats can accept long term.
To be clear: OKCLEAR does not treat human allergic disease and does not make a cat allergen-free. It addresses daily allergen-load management on the pet and home side.
OKCLEAR Research & Development Team
01Daily management pathway
Identify
A multi-target identification pathway arranged around Fel d1–8
02Daily management pathway
Neutralize
Specific IgY binds the target allergen
03Daily management pathway
Manage
Connecting the mouth, coat, diet and home environment
TECHNOLOGY PLATFORM
Turning a scientific concept into a producible, testable, sustainable product platform
Target definition
Antigen information, sources, structures and use scenarios are documented around Fel d1–8, giving antibody preparation and assay development a common starting point.
Specific IgY preparation
Target-specific IgY is obtained through avian immunization and egg-yolk antibody extraction, and continuously optimized for binding titre, specificity and batch consistency.
Formulation and dosage-form translation
The core ingredient is adapted to high-frequency scenes such as staple food, supplements, grooming, spray, cleaning and litter, so the technology can enter a stable, practicable home routine.
Multi-layer verification
From binding and neutralization assays, ingredient stability and retained samples to cat studies and real home settings, a traceable layered verification chain is formed.
PRODUCT CENTER
From source to environment: one complete daily system
Hover over a product image or focus it with the keyboard to see where it works, how to use it and its boundaries.
SOURCE
Manage the source through daily nutrition
Baked cat food and OKCLEAR Cat Allergen-Reducing Powder bring specific IgY into a repeatable daily feeding routine.
COAT
Address deposits on the coat
Shampoo supports bathing, while rinse-free mousse and cleaning gloves provide coat care and wiping when a full wash is impractical.
HOME
Extend care into the shared home
Spray and cassava litter address bedding, clothing, cages, litter areas and household surfaces, covering high-frequency contact points at home.
INSIGHTS
Latest articles
Ongoing notes on cat allergen management, shared-home routines and product use.
WHY OKCLEAR
Not a single product, but a complete allergen-management system
01
Source
The cat's mouth
Management begins at the source of saliva-associated allergens, through the daily feeding route.
02
Carrier
Coat and dander
After grooming, microscopic particles can travel with the coat and dander.
03
Environment
Shared living space
Bedding, sofas, clothing and litter areas form the high-frequency contact points at home.
Coverage across three approaches
| Approach | Source / Coat / Home | Target scope | Observation window | Role |
|---|---|---|---|---|
Multi-scene daily management OKCLEAR | Fel d1–8 | Per SKU test data | Combined across touchpoints | |
Single pathway Mainstream functional cat food | Fel d1 | Depends on study design | Single daily feeding pathway | |
Local treatment Ordinary cleaning products | Non-specific or single target | Immediate or product-dependent | Single surface or environment point |
Different products and published studies may use different samples, assays, time points and endpoints, so no head-to-head superiority comparison is made. Conclusions depend on the applicable SKU and evidence materials.
PUBLISHED EVIDENCE
A traceable public evidence chain from mechanism and cat studies to human home observation
The following is a review of published research, searched up to 26 August 2026. Results for other products in published papers are not results for OKCLEAR products.
MECHANISM
Specific IgY binds Fel d 1
Published research validates the molecular mechanism of source-side management with egg-yolk antibodies.
CAT STUDIES
Active Fel d 1 falls in saliva and on the coat
In a 105-cat study, significant change appeared from week 3, with an average reduction of about 47% later in the study.
HUMAN HOME STUDY
Multiple symptom scores improved after one month
The 2024 MASK-air study recorded changes in overall, nasal, ocular, asthma and symptom–medication scores.
EPITOPE ENGINEERING
2026 study: 23 cats, 4 weeks
Salivary Fel d 1 fell by about 50%–71% in some dose groups, showing the R&D potential of multi-epitope antigens and specific IgY.
A continuously updated scientific library
Every study keeps its original qualifiers and DOI link so professional readers can verify independently.
105cats
IID · 2019
Active Fel d 1 on the coat
Significant reduction from week 3; an average reduction of about 47% later in the study
View DOI ↗26weeks
Frontiers · 2020
Adult cat safety
No ingredient-related adverse effects observed under the test conditions
View DOI ↗84days
Frontiers · 2024
Kitten safety
27 kittens in a randomized blinded controlled study; no biologically meaningful adverse changes
View DOI ↗42people
MASK-air · 2024
Human home observation
After one month, overall, nasal, ocular and symptom–medication scores all showed improvement
View DOI ↗GLOBAL PARTNERSHIPS
Building the cat-allergen management category with professional partners
We look for partners who can turn technical evidence into compliant market education, channel execution and ongoing customer support. Scope is assessed project by project.
01PRODUCT & DOCUMENTATION
Product and documentation
Product mix, technical dossiers, testing standards and channel training materials are aligned around specific SKUs so procurement and professional teams can review efficiently.
02COMPLIANCE & LOCALIZATION
Compliance and localization
Regulatory classification, labels, packaging and local expression are reviewed with partners; market claims follow the applicable SKU and local requirements.
03VALIDATION & SUPPLY
Validation and supply
Sample evaluation, feedback loops, quality traceability and continuous supply form the basis for a verifiable, workable partnership path.
A four-step partnership path
01
Initial partner assessment
Understanding the company, channel capability, intended use and professional review needs.
02
Confidential dossier review
Where applicable, an NDA is signed before reviewing approved product specifications, quality, compliance and commercial materials; formulation, manufacturing process and proprietary technical details are not disclosed.
03
Project scope confirmation
SKUs, channels, volumes, compliance responsibilities and the project plan are confirmed item by item.
04
Product evaluation
Samples or evaluations are arranged according to product availability and the mutually confirmed plan.
SCIENCE, EXPLAINED SIMPLY
Starting from one cat hair: how allergens enter daily life
Cat hair is not the problem itself; it acts more like a carrier. These three steps show how it moves from the cat into shared spaces.
01
Grooming: proteins stay on the coat
When a cat grooms, saliva-associated proteins can settle on the skin and coat surface.
02
Coat and dander: they become carriers
Shed hair, dander and daily contact gradually spread these microscopic particles away from the cat.
03
Shared environment: they accumulate in daily spaces
Sofas, bedding, clothing and indoor dust can all become places where allergen particles linger or settle.
Frequently asked questions
Can the AmiFree series treat my cat allergy?
No. The AmiFree series is designed for managing allergen load from cats and the home environment. It is not a medicine for human allergic disease and does not replace medical evaluation or treatment. Decisions about human symptoms, medication or living arrangements should be made with a qualified clinician.
Does it make my cat hypoallergenic or allergen-free?
No. Cats still produce allergens. The goal is to help reduce exposure, not to eliminate it entirely. No product can make a cat allergen-free.
What is Fel d 1 and why is it the core target?
Fel d 1 is a well-studied cat allergen protein found in saliva and skin secretions. Grooming moves it onto the coat, and dander and dust can carry it around the home. Fur itself is usually not the allergen. Fel d 1 has been associated with up to 96% of sensitization to cats in the literature and is the best-studied core component.
Reference: WHO/IUIS Allergen Nomenclature ↗Why egg-yolk IgY?
IgY is an egg-yolk antibody. Published laboratory studies show that anti-Fel d 1 IgY can bind the protein and reduce measured active Fel d 1. OKCLEAR uses this source-side approach; results from other tested products are not results for OKCLEAR.
Reference: Satyaraj et al., Journal of Immunology Research, 2021 ↗How do I use the Cat Allergen-Reducing Powder?
Mix the powder into the cat's regular dry or wet food, following the dose on the purchased product's label and the cat's weight. Directions can differ by SKU and cat weight; follow the label.
How long before I should evaluate results?
Follow the specific product directions and the measured endpoint. Published studies of a particular anti-Fel d 1 IgY cat diet observed changes in active Fel d 1 after about three weeks of continued feeding; that timeline is not an OKCLEAR powder result or promise. Dietary, grooming and home-care endpoints differ.
Reference: Satyaraj et al., Immunity, Inflammation and Disease, 2019 ↗Can it replace antihistamines or medical advice?
No. It is a pet- and home-side routine. Decisions about human symptoms, medication or living arrangements should be made with a qualified clinician. Seek urgent medical care for breathing difficulty, blue lips or face, severe wheezing, or rapidly worsening throat symptoms.
What does the "1 day" indicator mean?
Under defined product test conditions, target-allergen indicators changed in as little as one day. This is not a promise of human symptom relief in a day. The statement applies only to the powder + spray + shampoo combination test, not to individual products or human symptom improvement. Dietary, grooming and home-care endpoints differ.
- Separate measurable indicator change from household experience: the latter is also shaped by exposure load, individual sensitivity and the home.
- Published IgY-cat-food research observed significant active Fel d 1 reduction from week 3; it is a reference for sustained source management, not a universal timeline for every product.
Is it only Fel d 1, or Fel d 1–8?
Fel d 1 is one of the best-studied cat allergens and is associated mainly with saliva and sebaceous secretions. But cat allergy is not a one-component condition: Fel d 2, 4 and 7 can also contribute to different molecular sensitization profiles. OKCLEAR uses Fel d 1–8 as an R&D and testing framework so product design can consider multiple exposure pathways across the source, coat and home.
- A multi-target approach does not mean every home must address eight components at once; it means R&D should not reduce real exposure to one marker.
- For partners, it provides a more complete language for product development, testing and training.
Where does the research background come from?
The brand was started by a team with a Zhejiang University pet-nutrition research background. This statement describes the team research background; it does not mean OKCLEAR is an official Zhejiang University product, produced by Zhejiang University, or endorsed by Zhejiang University.
Which cats need a vet check before use?
Read the actual product label first. If your cat has special dietary requirements, a health condition or uses other supplements, consult a veterinarian. Directions can differ by SKU. Kittens, pregnant or nursing cats, and cats with chronic conditions should be evaluated by a vet before use.
Do you work with distributors and business partners?
Yes. OKCLEAR works with distributors, pet-health channels, specialty retail, e-commerce platforms, pet-food brands and research partners. We value partners who can review technical materials, communicate responsibly and support the channel over time.
- For a first discussion, share your company website, current channels, SKUs of interest, estimated initial volume and review questions.
- Partnership availability is assessed by product, project scope and applicable requirements.
CONTACT US
Discuss products and partnership with OKCLEAR
Contact us about distribution, co-branding, channel programs, technical materials or research collaboration. Please include your company, channel type, products of interest, estimated initial volume and review questions.
- Office
- 杭州，中国 / Hangzhou, China
- Business email
- info@okclearpet.com
- Telephone
- 18158515472
- Website
- okclearpet.com
Contact us by email
info@okclearpet.com
Please include your company website, channel type, products of interest, estimated initial volume and required documents.
GLOBAL PARTNERSHIPS
Building the cat-allergen management category with professional partners
We look for partners who can turn technical evidence into compliant market education, channel execution and ongoing customer support. Scope is assessed project by project.