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
Read original paper ↗OKCLEAR SCIENCE
OKCLEAR Science: IgY & Fel d 1
Learn how OKCLEAR approaches cat allergen management with egg-yolk IgY targeting Fel d 1, alongside broader Fel d 2–8 research.
ON THIS PAGE
- What Fel d 1 is
- Why egg-yolk IgY
- The Fel d 1–8 R&D and testing framework
- Intellectual-property posture
- The source–coat–home pathway
Fel d 1–8 describes the R&D direction and does not prove full-target efficacy. Results for other products in published papers are not results for this product.
FEL D 1
What Fel d 1 is
Fel d 1 is present in cat saliva and skin secretions. Grooming moves it onto the coat, and dander and dust then carry it around the home. Hair itself is usually not the allergen; it is the carrier.
| 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 |
IGY
Why egg-yolk IgY
IgY is an egg-yolk antibody. Published laboratory studies show anti-Fel d 1 IgY can bind the protein and reduce measured active Fel d 1. This source-side approach intervenes before allergens enter the environment.
FEL D 1–8 FRAMEWORK
The Fel d 1–8 R&D and testing framework
Fel d 1 is one of the better-studied components, 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 framework does not mean every home must handle eight components at once; it means R&D should not reduce real exposure to a single marker.
PATENT POSTURE
Intellectual-property posture
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. Status follows verifiable filing or grant information; an application is not a granted patent.
SOURCE → COAT → HOME
The source–coat–home pathway
Three stages map to three product touchpoints: daily nutrition at the source, grooming and wiping on the coat, spray and litter in the shared home.
01
The cat's mouth
Management begins at the source of saliva-associated allergens, through the daily feeding route.
02
Coat and dander
After grooming, microscopic particles can travel with the coat and dander.
03
Shared living space
Bedding, sofas, clothing and litter areas form the high-frequency contact points at home.
PUBLISHED RESEARCH
A continuously updated scientific library
26weeks
Frontiers · 2020
Adult cat safety
No ingredient-related adverse effects observed under the test conditions
Read original paper ↗84days
Frontiers · 2024
Kitten safety
27 kittens in a randomized blinded controlled study; no biologically meaningful adverse changes
Read original paper ↗42people
MASK-air · 2024
Human home observation
After one month, overall, nasal, ocular and symptom–medication scores all showed improvement
Read original paper ↗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.