Excessive tearing and tear stains are common issues in dogs, often influenced by breed characteristics and diet. Choosing the right care products and habits can help reduce stains while maintaining eye health.





| Item | Main Ingredients | Duration of Effect | Frequency of Use |
|---|---|---|---|
| BEST 1 Spray | Natural plant extracts | Supportive (unverified) | 2–3 times a day |
| BEST 2 Pads | Natural cotton | Supportive (unverified) | 1–2 times a day |
| BEST 3 Food | Low-allergen high-protein | Needs confirmation | Continuous feeding |
The effect claims in the table are based on product marketing and are not veterinarily verified figures. Excessive tearing can have various causes—tear drainage disorders, eyelid/eyelash abnormalities, ophthalmic diseases, etc.—so consult a veterinarian before use, and discontinue immediately if a skin reaction occurs.
Caution: Excessive Tearing May Be Caused by a Disease
If your pet suddenly develops excessive tearing and staining, or if their eyes become red or swollen, it may indicate an underlying condition such as keratitis, conjunctivitis, or nasolacrimal duct obstruction. In such cases, immediate veterinary examination is essential. Self-diagnosis or using outdated products can worsen eye health.


A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.
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[1] Gelatt KN et al. (2013) Veterinary Ophthalmology, 2nd ed. Wiley-Blackwell, Oxford, UK.
[2] Esson DW and Calvarese S (2022) Clinical Atlas of Canine and Feline Ophthalmic Disease, 2nd ed. John Wiley & Sons, Inc.
[3] Seo KM and Nam TC (2006) Medial canthoplasty for epiphora in dogs: a retrospective study of 23 cases. J Am Anim Hosp Assoc, 42, 435–439.