Eye Drops for Eye Infection Treatment, Soothe Infection Allergy, Relieve Dry Eyes & Red Eye，Eye Cleaner and Tear Stain Remover for Dogs and Cats | 10 ml 0.33 FL OZ (1 Bottle) Review
By Marcus Bell · Dog nutrition editor · Published 2026-05-13 · Updated 2026-06-17
4.5(344)Amazon rating$28.992,000+ bought last month
Our verdict
Cassiel Pet's 10 ml eye drop is marketed for allergy-related redness, dryness and tear stains, and with 2,000 units reportedly bought in the past month plus a 4.5 star rating across 344 reviews, it's clearly one of the more popular drops in this lineup.
Owners who want a widely bought, well-reviewed everyday drop for redness, dryness or minor irritation.
Skip if
Your dog has symptoms that look like an actual infection, since that needs a vet's diagnosis rather than an over-the-counter eye drop.
Weight 0.634 Ounces
Priced 61% above the category median ($17.99 across 53 tracked models)
Our scorecard
4.4/5overall
Owner rating4.5/5
4.5 average across 344 owner ratings
Popularity1.5/5
344 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog food and health supplements we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
['This is a small 10 ml, 0.33 fluid ounce bottle of colorless liquid, marketed for cats and dogs of all ages, positioned to soothe allergy-related irritation, dryness and redness, and to help clean up tear staining.', 'With 2,000 units bought last month and 344 reviews averaging 4.5 stars, this is one of the higher-volume sellers among the eye drops in this category, though buyers should still treat marketing language around infection treatment as general comfort support rather than an actual medical treatment.']
Pros
Strong sales volume, about 2,000 bought in the past month
Solid 4.5 star average across a meaningful 344-review sample
Marketed for all life stages, not restricted by age
Compact bottle works for dogs and cats alike
Cons
$28.99 for a 10 ml bottle is pricier per ounce than several alternatives on this list
No published ingredient list to evaluate the formula
Infection treatment marketing claims outpace what any over-the-counter drop should promise
Sparse directions beyond all the ages
Specifications
Weight
0.634 Ounces
Performance notes
The larger review count and reported sales volume here are a reasonable proxy for real-world reliability, even without a published ingredient list. As a small colorless liquid drop, it's built for direct application rather than a wipe or wash.
What buyers say
A 4.5 star average across 344 reviews, combined with roughly 2,000 units bought in the past month, points to one of the more established and consistently reordered drops in this category.
Is this suitable for puppies as well as adult dogs?
The listing markets it for all life stages, though as always, check with your vet before starting any new product with a young puppy.
Can this treat a real eye infection?
No over-the-counter eye drop should be relied on to treat an actual infection. If you suspect one, see a vet for a proper diagnosis and treatment plan.
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