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.

Shop Nutramax

Frequently bought together

Questions & Answers

23 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
786 Ratings
Terms & Conditions

Customers Mention

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

Effectiveness

81% Positive

Form and Administration

74% Positive

Ingredients

77% Positive

Nutritional Value

76% Positive

409 Customer Reviews

Rated 1 out of 5 stars
By MLeigh on Mar 4, 2026
Top 50 Contributor

Chewy Sent Me Two Bottles Of This With No Safety Seal

I can't tell you how well Welactin works because I have ordered this product twice now and it hasn't arrived with any kind of safety seal, so once again it looks

I can't tell you how well Welactin works because I have ordered this product twice now and it hasn't arrived with any kind of safety seal, so once again it looks like I will be returning this product and ordering it elsewhere. There IS supposed to be a safety seal, as there is a review of a photo of this product in the reviews for this product and the person who wrote the review said the product had leaked because the seal was broken. I have no idea how well Welactin works or how my cats would like it because after ordering it twice with no seal I haven't been able to try it, but I can review the condition it arrived in and not having a safety seal is not acceptable.

Rated 5 out of 5 stars
By Caitlin on Mar 4, 2026

Was actually recommended by my Veterinarian!!

I love this item, I can only use a tiny bit due to the fish oil and other ingredients because my cat is a diabetic. My vet recommended it and his coat is softer,

I love this item, I can only use a tiny bit due to the fish oil and other ingredients because my cat is a diabetic. My vet recommended it and his coat is softer, he is healthier from what I can (by his stools etc etc). If you have a diabetic cat you can still give it to them, just add it in with their food. I do a half dose every three days or so. I haven't noticed any negative effects so far and whats great is my cat LOVES IT! It must taste good in his food because he is normally SO picky!! 5 Stars all around!

Rated 5 out of 5 stars
By Bridget on Feb 21, 2026

Thank you for the recommendation

I’m sure I was probably talking to an AI bot, but I did the chat with the vet on my cat Jack. Jack was experiencing losing a lot of hair with flaky skin. I set up

I’m sure I was probably talking to an AI bot, but I did the chat with the vet on my cat Jack. Jack was experiencing losing a lot of hair with flaky skin. I set up a humidifier. I was brushing him daily, and I even got him an omega tube food in hopes that it would help. But nothing was helping so I clicked on the chat with the vet. And they recommended this and within one week his skin is no longer flaking and it’s not losing hair as bad. Plus, this is the big plus, he eats it! I put it on his food and he eats it!!! I was afraid that it’d be something. I’d have to try to figure out how to get down him. If your cat has flaky dry skin, you need to try this.

Rated 1 out of 5 stars
By Lisa on Mar 9, 2026
Top 500 Contributor

Didn't work for Cole

My boy had an extremely itchy back in. The chewy vet recommend this product. I tried to use but my boy, Cole wanted absolutely nothing to do with it. Even when I

My boy had an extremely itchy back in. The chewy vet recommend this product. I tried to use but my boy, Cole wanted absolutely nothing to do with it. Even when I mixed it in his favorite moist food. I tried just using half of the dose again in his favorite food. I finally gave up and no longer tried to give it to him. I do still appreciate the chewy vet trying to help my boy. Unfortunately this was a no go for him.

Rated 5 out of 5 stars
By Linda on Mar 6, 2026

Good for pet with sensitive skin - makes the coat very soft

This was recommended by our veterinarian for our cat with sensitive skin - itchy ears - also sensitive stomach. A small dose is mixed once a day into wet food. It

This was recommended by our veterinarian for our cat with sensitive skin - itchy ears - also sensitive stomach. A small dose is mixed once a day into wet food. It relieves itchy ears and damage from scratching, and makes the fur very soft and lustrous. She tolerates it well. I recommend asking your veterinarian about this treatment first.

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 3 out of 5 stars
By Jane on Feb 20, 2026

My 3 Cats don't like the Omega 3

No matter how I try to add it to any of their food, they refuse to eat the food! I tried layering it on their wet food, mixing it, nothing works and I wind up throwing

No matter how I try to add it to any of their food, they refuse to eat the food! I tried layering it on their wet food, mixing it, nothing works and I wind up throwing the food out. Cats have a strong sense of smell and they would rather not eat then have this in their food!

Rated 5 out of 5 stars
By Tasia on Jan 25, 2026

Major difference in their coats

My cats vet recently recommended I mix Wellactin in with another supplement one of my senior cats is taking to help with his achy joints. Since my other kitty experiences

My cats vet recently recommended I mix Wellactin in with another supplement one of my senior cats is taking to help with his achy joints. Since my other kitty experiences dry skin due to a condition, I gave it to her as well and it has done WONDERS for their coats. I’m ordering my next bottle and plan on making this a regular part of their routine once a day!

Rated 3 out of 5 stars
By Esther on Feb 12, 2026

SO messy!

I don't know if it is working or not. I assume it is. But it is so messy to give! I have oil on me after every dose! I even bought a different bottle to squeeze

I don't know if it is working or not. I assume it is. But it is so messy to give! I have oil on me after every dose! I even bought a different bottle to squeeze out drops. Still oily everywhere. It does not have a bad odor so it is easy to mix in with food.

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.