US
100%

100% Pure Fish Oil for Dogs & Cats

  • Fish Oil
  • 8 fl oz
  • Cat, Dog
  • 32 fl oz
4.4/ 5 on Amazon4,731Amazon ratings200+bought last month4.1ProductDome score
  • More reviewed than 78%
Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou want a liquid fish oil you can dose by teaspoon and scale to your pet's size

A liquid, multi-source fish oil blend dosed by teaspoon, aimed at coat, joint, and heart support for dogs and cats.

View current price on Amazon →

As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.

ProductDome scorecard

How it ranks among the 78 fish oils we track

4.1/ 5ProductDome scoreMedium confidence
Owner satisfaction · 56% of scorecategory median 4.5★4.4

4.4★ across 4,731 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 1,204 ratings4.6

4,731 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.1

200+ bought on Amazon last month.

Data quality · 11% of score2.5

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 78 fish oils we track - how the scorecard works · full fish oils data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

Finest For Pets' 100% Pure Fish Oil (Omegease), a 32 fl oz liquid blend of wild-caught sardine, anchovy, herring, and mackerel oil delivering 1,545 mg of omega-3 per teaspoon, unflavored, for dogs and cats.

This is a liquid fish oil rather than a soft gel, dosed by teaspoon and poured over food, which suits owners who want to scale the amount by the pet's size rather than rely on a fixed capsule dose. Sourcing from four wild-caught fish species rather than a single source is how the brand reaches its blended omega-3, EPA, and DHA percentages.

  • 32 fl oz bottle, 1,545 mg omega-3 per teaspoon
  • Sourced from sardines, anchovies, herring, and mackerel
  • Unflavored liquid fish oil
  • For dogs and cats

Who it's for

Dog and cat owners who want a liquid fish oil they can dose by teaspoon over food, particularly for coat, joint, or heart support. Owners who prefer a mess-free soft gel format may find a capsule product more convenient.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Liquid format allows dose scaling by teaspoon
  • Sourced from four wild-caught fish species
  • Flip top cap for easy pouring
What to check first
  • Fish allergen, not suitable for fish-sensitive pets
  • Liquid oil can be messier than a soft gel

Performance notes

The blend draws omega-3 from four wild-caught fish sources, reaching a minimum 35% omega-3 content with 18% EPA and 12% DHA per the label's active ingredient breakdown, plus smaller amounts of omega-6 and omega-9 fatty acids. Being a liquid rather than a soft gel, dosing scales by teaspoon rather than by whole capsule, and the bottle includes a flip top cap for pouring.

Specifications

Brand100%
Dimensions & fit
Item Weight2 pounds
Dog Breed SizeAll
Capacity & performance
Volume8 fl oz
Included components
Unit Count32 fl oz
Included ComponentsFlip Top Cap
Other details
Pet TypeCat, Dog
AsinB01MR882D0
ManufacturerFinest For Pets
Best Sellers Rank#11,595 in Pet Supplies (See Top 100 in Pet Supplies) #59 in Dog Fish Oil Supplements
Product BenefitsRelieves Scratching & Joint Pain. Improves Skin, Coat/Fur Condition. Helps Immune, Brain & Heart Health
Allergen InformationFish
Customer Reviews{'ratings_count': '4,731', 'stars': '4.4'}
Item FormLiquid
Active Ingredients100% Pure Fish Oil from Wild Caught Sardines, Anchovies, Herring and Mackerel. Contains Omega-3 35% (min), EPA (Eicosapentaenoic acid) 18% (min), DHA (Docosahexaenoic acid) 12% (min), Omega-6 Fatty Acids 7% (min), Omega-9 Fatty Acids 6% (min)
Specific Uses For ProductCoat, Hairballs, Heart, Joints
FlavorFish Oil
Item Type NameOmega 3 Fish Oil
Target SpeciesDog
Manufacturer Part NumberOmParent
Model NumberOmParent

How it compares

This product against the closest alternatives we track in fish oils.

ProductAmazon ratingRatingsProductDome score
100% Pure Fish Oil for Dogs & CatsThis product4.4 / 54,7314.1 / 5
Natural Dog Company Wild Alaskan Salmon Oil for DogsNatural4.6 / 513,6774.6 / 5
Fish Oil for Dogs, Salmon Pollock Liquid Omega 3, 64 oz | Soft Shiny Glossy Coat, EPA…Fish4.6 / 58,5054.6 / 5
Zesty Paws Wild Alaskan Omega-3 Blend Pollock + Salmon Oil for Dogs and Cats- Skin and…Zesty4.5 / 569,5924.5 / 5
Salmon Oil for Dogs & CatsSalmon4.5 / 529,1454.5 / 5
Frequently asked

Questions about the 100% fish oils

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How much omega-3 is in each teaspoon?

1,545 mg of omega-3 per teaspoon, per the listing.

What fish is it made from?

Wild-caught sardines, anchovies, herring, and mackerel.

Is it for dogs, cats, or both?

The listing covers both dogs and cats.