Nutramax Welactin Omega-3 Fish Oil Liquid Skin & Coat Supplement for Cats, 4-fl oz

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At a Glance

  • Skin & Coat Health
  • All Lifestages
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$15.99 Chewy Price
($4.00 /fl oz)
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About This Item

Details

  • Premium Omega 3 Cats - Welactin is the #1 vet recommended omega 3 supplement brand and is a rich source of omega 3 fatty acids, EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid).
  • Supports Skin and Coat Health - The omega 3s in Welactin fish oil help support skin and coat health, plus overall wellness. It is recommended for cats of all sizes and life stages.
  • Supports Several Functions - In addition to supporting skin and coat health, omega 3s help support kidney, brain, and vision health.
  • Easy to Administer - Welactin oil includes a scoop for easy and convenient dispensing. Measure the appropriate amount and pour over your cat’s food at mealtime.
  • Exceptional Quality - Welactin is backed by science, undergoing thorough quality inspections to ensure your cat receives a safe, high-quality product. It is manufactured in the United States with globally sourced ingredients.

Ingredient Information

Instructions

FAQ

Learn More About Nutramax From Our Team of Experts

Welactin Omega-3 Supplements

Welactin provides fish oil with long-chain omega-3 fatty acids for skin and coat health, and overall wellness.

#1 Veterinarian Recommended

Welactin, the #1 veterinarian recommended omega-3 supplement brand.

Source: Survey conducted among small animal veterinarians who recommended omega 3 supplements.

The Welactin Difference

The long-chain omega-3 fatty acids, EPA and DHA, found in Welactin are more readily available for use in the body of dogs.

Unmatched Quality

Each batch of Cosequin undergoes rigorous quality inspections, ensuring that your pet receives a high-quality joint health supplement.

About Nutramax

Family owned and operated since 1992, Nutramax Laboratories exceeds the industry standard for animal health supplements. We develop high-quality products for joint, liver, digestive health, and overall wellness.

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Frequently bought together

Questions & Answers

22 Customer Questions

Does this supplement help prevent hairballs?

How do u do a scoop when it is liquid?

Answer by Chewy • Mar 25, 2024
To use, prior to first use, unscrew cap, remove seal and screw cap back on tightly. Then open the flip top and invert bottle to dispense. Pour into measure level scoop.

How many “scoops“ are in a bottle?

Answer by Chewy • Apr 01, 2020
This 4 ounce bottle contains approximately 94 servings (1.25 mL scoops).

Does this have a fishy taste?

Answer by Chewy • Sep 19, 2019
This supplement contains fish oil. It will have a fishy taste.
Reviews
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4.1
Rated 4.1 out of 5 stars
725 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Effectiveness

81% Positive

Form and Administration

76% Positive

Ingredients

77% Positive

Nutritional Value

76% Positive

382 Customer Reviews

Rated 2 out of 5 stars
By Samantha on Jan 19, 2026

Horrendous Packaging

Our vet recommended this specific supplement for our arthritic girlie, and after using it for a few months, I would say it’s helping. Our girl is more active and

Our vet recommended this specific supplement for our arthritic girlie, and after using it for a few months, I would say it’s helping. Our girl is more active and playful than she’s ever been. However, the packaging is awful. It was annoying when we started buying this supplement. We had to set the bottle in a glass because the leaking was inevitable after use, but the bottle has been redesigned and it's 10 times worse. Getting the oil into a measuring device is painful, and it still leaks! Please, please put this supplement into a bottle with a dropper.

Rated 4 out of 5 stars
By animalemc on Dec 30, 2025

She LOVES it

Recommended by vet for cats with arthritis (can help eyes and coat also). After one or two samples (with Churu also in the bowl), Roo decided it was GOOD stuff

Recommended by vet for cats with arthritis (can help eyes and coat also). After one or two samples (with Churu also in the bowl), Roo decided it was GOOD stuff. She licks the bowl clean every time and is very possessive over it, lol. When I offer her Churu now (cat lovers know how addictive that is), she looks at me waiting for the fish oil! I suspect not every cat would like it but, it's been a success for this girl. Does it work? Not sure we really know but, it's not that expensive and no drawbacks.

Rated 1 out of 5 stars
By Brenda on Jan 19, 2026

The Smell is terrible

I have 2 cats, one that is very picky and one that will eat anything. Neither one of them would touch this product. Didn't matter how I tried to hide it in their

I have 2 cats, one that is very picky and one that will eat anything. Neither one of them would touch this product. Didn't matter how I tried to hide it in their food. I had to thoroughly clean their bowls after for them to eat their food without it. I gave it 1 star rating because it made me rate it

Rated 5 out of 5 stars
By Joan on Jan 1, 2026

The first thing I noticed was how much my cat liked the fish oil.

After a little while of getting this added to his food, he wouldn't eat without it! This is a cat who likes his food, so that was quite a surprise. I feed him small

After a little while of getting this added to his food, he wouldn't eat without it! This is a cat who likes his food, so that was quite a surprise. I feed him small amounts at a time, and he's only supposed to get one tiny measured scoop of oil a day, so I apply just a few drops each time he gets a little wet food, to make the oil last all day.

Rated 5 out of 5 stars
By Sandy on Dec 16, 2025

OMEGA 3 OIL

The 4 ounce bottles with the flip spout are so much better than the big tall bottles (12 ounce ?) of salmon oil. Small bottle, fits in fridge easily. Yes oil still

The 4 ounce bottles with the flip spout are so much better than the big tall bottles (12 ounce ?) of salmon oil. Small bottle, fits in fridge easily. Yes oil still sneaks out of the neck, but I can wrap the bottle in a paper towel with rubber bands. The BIG bottle made a BIG mess and by the time it was getting low my cat refused it or threw up - had gone RANCID???

Rated 5 out of 5 stars
By Marianne on Dec 15, 2025

She actually likes it!

My vet wanted my two 17 year old cats to start taking this. I was skeptical being how fussy cats are, but to my surprise they actually eat their food up when I put

My vet wanted my two 17 year old cats to start taking this. I was skeptical being how fussy cats are, but to my surprise they actually eat their food up when I put this in. The scoop holds more liquid than I would use at one feeding, so I just add some drops at each feeding throughout the day.

Rated 2 out of 5 stars
By Kat on Dec 9, 2025

Packaging is absolutely horrible

The ingredients and Omega-3 content seem adequate, but our cats hate the smell and refuse to eat the food. Moreover, the bottle is the dealbreaker - oil drips down

The ingredients and Omega-3 content seem adequate, but our cats hate the smell and refuse to eat the food. Moreover, the bottle is the dealbreaker - oil drips down the side of the container, creates a huge mess every time, and wastes the oil. Will not repurchase because of that.

Rated 5 out of 5 stars
By Donna on Jan 5, 2026

Made a BIG difference

My cat was over grooming herself and causing hair loss. Her veterinarian recommended this product and it has worked wonders! She loves the taste and looks forward

My cat was over grooming herself and causing hair loss. Her veterinarian recommended this product and it has worked wonders! She loves the taste and looks forward to this treat everyday.

Rated 4 out of 5 stars
By Rebecca on Jan 16, 2026

Fish oil

It seems to be helping with my cats arthritis. I wish they could design these bottles, so they didn't drip down the bottle, though.

It seems to be helping with my cats arthritis. I wish they could design these bottles, so they didn't drip down the bottle, though.

Rated 3 out of 5 stars
By Lydia on Oct 2, 2025

Cat won’t eat it, smells rancid

I bought this fish oil because it has good reviews but it smells kinda weird to me, not like fish oil but more like a veg oil, the ingredients do list veg oil so

I bought this fish oil because it has good reviews but it smells kinda weird to me, not like fish oil but more like a veg oil, the ingredients do list veg oil so I’m wondering what kind it is. It reminds me of flaxseed oil but I’m not sure at all, I wish it smelled more like fish so the smell and taste matched his fancy feast canned fish wet food. My cat can smell it in his food and won’t eat it that way. The expiration date is 2 years away and the ingredients list a preservative so I guess I’ll try to use it by putting a little on his front leg because I think he will lick it off to get clean. I hope he gets some benefits from it.