Best Dog Supplements for Dry, Itchy Skin (2026): 6 Picks by EPA/DHA & Cost

Your dog won’t stop scratching. Or their coat feels like straw and leaves flakes on the couch. You head to the supplement aisle and find dozens of omega-3 jars, all promising a shinier coat.

The problem is that most dog supplements for dry skin don’t tell you the one number that matters: how much EPA and DHA your dog actually gets each day. So we worked it out.

We compared six popular skin and coat supplements on EPA and DHA per day, cost per day, calories and hidden allergens. Every figure is for a 50 lb dog at the dose printed on each label.

One caution before you shop. If your dog has open sores, bald patches, constant ear trouble or chews until they bleed, see your veterinarian first. A supplement supports the skin. It can’t tell you why the itching started.

The short answer: The best dog supplements for itchy skin and dry coats are fish oils that list EPA and DHA in milligrams. Grizzly Salmon Plus gives the most per dollar, and Nordic Naturals has the cleanest label.

Dog Food Insights earns a commission on some links in this article, at no extra cost to you. It doesn’t change what we recommend or how we rank products.

How We Compared These Supplements

Every number below comes from the product label or the brand’s own product page. We then ran the same math for each product.

• One test dog: a 50 lb adult dog, fed the daily amount printed on each label.
• EPA + DHA: taken from each guaranteed analysis. Where a label lists omega-3s per teaspoon but you dose by pump, we converted using the pump volume printed on the bottle.
• Boundary doses: if 50 lb falls between two rows of a dosing chart, we show both as a range.
• Cost per day: current retail price divided by the days one container lasts at that dose. Prices were checked on October 1, 2026.
• “Not disclosed”: the brand doesn’t publish that number on its label or product page.
• Recalls: we searched FDA recall announcements and FDA Enforcement Report records for each brand, as of October 1, 2026.
• Owner feedback: drawn from verified reviews on Amazon, Chewy and Walmart. Reviews on brand websites were excluded. Full sources are listed at the end.

Prices change often. Treat our cost figures as a snapshot and check the current price before you buy.

Dry Skin vs. Itchy Skin: Which Supplement Fits?

Dry skin and itchy skin often show up together, but they don’t always have the same cause. Knowing which one you’re seeing helps you pick the right product.

Dry, flaky skin

Dry skin usually looks like white flakes, a dull coat and fur that feels rough. Common contributors include a diet low in fat, dry winter air and bathing too often.

This is where omega-3 supplements make the most sense. EPA and DHA support the skin’s natural barrier, and vitamin E helps protect those fats from going rancid.

Itchy skin

Itching is a symptom, not a diagnosis. Allergies, fleas, mites and skin infections are all common triggers. A supplement may support the skin barrier, but it won’t remove fleas or clear an infection.

If your dog is licking their paws raw, shaking their head or scratching through the night, book a vet visit before you start any supplement. Your vet can rule out parasites and infections first.

What Actually Matters on the Label

Check these four things on the label before you compare prices.

1. EPA + DHA in milligrams, not “total omegas”

EPA and DHA are the long-chain omega-3s that skin and coat fish oils are built around. A label that only shows “total omega-3, 6 and 9” mixes them with omega-6 and omega-9, which most dog foods already supply plenty of.

If a brand won’t list EPA and DHA separately, you can’t compare it fairly. Omega-3s also aren’t recognized as an essential nutrient in AAFCO‘s dog food profiles, so brands aren’t required to list them in a standard way.

2. Fish oil vs. flaxseed

Flaxseed supplies ALA, a plant omega-3. Dogs convert very little ALA into EPA and DHA. In a 6-week study of sled dogs, those given flaxseed oil saw their blood EPA and DHA fall, while dogs given krill oil saw both rise.

Flax-based products like VetIQ and Dinovite can still support skin through zinc, biotin and vitamin E, but don’t expect them to match fish oil on omega-3s.

3. Hidden allergens

This matters most on an itchy-skin list. Many skin chews use chicken, pork, dairy, peas or yeast as flavor or binder. If your vet suspects a food allergy, read the full ingredient list, not just the front of the jar.

4. Freshness after opening

Fish oil oxidizes once it’s exposed to air. Nordic Naturals says to use its bottle within 3 months of opening. Grizzly says to buy a size your dog finishes within 90 days. A bigger bottle is only a better deal if you use it up in time.

Best Dog Supplements for Dry Skin and Itching: Our 6 Picks

1. Grizzly Salmon Plus Omega 3-6-9: Best Overall Value

Grizzly delivers the most EPA and DHA per dollar of anything we compared. Each teaspoon has 598 mg EPA and 368 mg DHA from wild Alaskan salmon, pollock and whitefish oil.

The pump is 3.5 mL, or about 0.7 teaspoon. A 50 lb dog sits on the line between two rows of the dosing chart: 2 pumps (25–50 lb) or 3 pumps (50–75 lb). That works out to roughly 1,350–2,030 mg EPA+DHA a day.

Bottle size is the one drawback. Grizzly’s label says to choose a size your pet finishes within 90 days. At 2 pumps a day, the 32 oz lasts about 135 days for one 50 lb dog, about six weeks past Grizzly’s own 90-day window.

The 32 oz is the right buy for a large dog, a two-dog home, or a dog on the 3-pump dose. For one medium dog on 2 pumps, store it cool and dark, and replace it if the oil starts to smell off before it’s finished.

Grizzly Salmon Plus Omega 3-6-9 (32 oz)

Best For: Large dogs, multi-dog homes and owners who want the most EPA+DHA per dollar

Cost Per Day: About $0.30–$0.45 for a 50 lb dog (2–3 pumps, $40.60 for 32 oz)

Why It Made the List?

• Lists EPA and DHA in milligrams: 598 mg EPA and 368 mg DHA per teaspoon
• Lowest cost per 1,000 mg EPA+DHA in our test, at about $0.22
• Carries the NASC Quality Seal and uses wild Alaskan salmon, pollock and whitefish oil

Key Specs

• Omega-3s and calories: 966 mg EPA+DHA per teaspoon; about 1,350–2,030 mg a day at 50 lb; 38 kcal per teaspoon
• Format and use: liquid with a 3.5 mL pump, for dogs and cats; labeled for intermittent or supplemental feeding
• Ingredients: wild Alaskan salmon, pollock and whitefish oil

Honest Take

• At 2 pumps a day, the 32 oz outlasts the label’s 90-day freshness guidance for one 50 lb dog. It fits large or multi-dog homes best.
• The label warns against use in dogs with bleeding disorders unless your vet directs it. No FDA recalls found as of October 1, 2026. On Amazon, it’s currently sold by a third-party seller and shipped by Amazon.
• Most common owner report: high overall satisfaction, at 4.6★ across about 4,300 Amazon ratings. Most common complaint: a long-time Chewy buyer reported recent bottles smelling of chemicals rather than fish, so check the smell when you open a new bottle.

Check Price on Amazon

2. Nordic Naturals Omega-3 Pet: Best for Label Transparency

Nordic Naturals has the most complete label in this test. Each teaspoon lists 736 mg EPA, 460 mg DHA and 1,380 mg total omega-3s, in triglyceride form, from anchovies, sardines, mackerel and herring.

A 50 lb dog gets 1 teaspoon a day (the 40–59 lb row), which is 1,196 mg EPA+DHA. The only other ingredient is vitamin E as a preservative. There’s no added flavor, and no soy, wheat, corn or dairy.

We link the 8 oz bottle, not the 16 oz. On Amazon, the 16 oz currently has only one seller at $63.89, well above its usual retail price. The 8 oz is sold by Nordic Naturals and shipped by Amazon, and it’s a better fit for Nordic’s own rule: use within 3 months of opening.

Nordic Naturals Omega-3 Pet (8 oz)

Best For: Dogs on other supplements or medications, sensitive dogs, and owners who want a short ingredient list

Cost Per Day: About $0.48 for a 50 lb dog (1 tsp, $22.34 for 8 oz)

Why It Made the List?

• Full EPA/DHA disclosure: 736 mg EPA and 460 mg DHA per teaspoon
• NASC Quality Seal, Friend of the Sea certification and third-party purity testing
• Two ingredients only: fish oil and vitamin E, with no soy, wheat, corn or dairy

Key Specs

• Omega-3s and calories: 1,196 mg EPA+DHA per teaspoon (1,380 mg total omega-3s); 39 kcal per teaspoon
• Format and use: unflavored liquid with a dosing chart for dogs 10–130 lb; refrigerate after opening and use within 3 months
• Ingredients: fish oil (from anchovies, sardines, mackerel and herring), d-alpha tocopherol

Honest Take

• We link the 8 oz because the 16 oz currently has only one Amazon seller at $63.89, making the 8 oz cheaper per day right now.
• The label asks you to consult your vet first if your dog has a known medical condition or takes medication. No FDA recalls found for this product as of October 1, 2026.
• Most common owner report: shinier coats and smoother dry skin, at 4.7★ across 1,057 Chewy ratings with 86% giving 5 stars. Most common complaint: the bottle dribbles when poured and has no dropper, so many owners buy one separately.

Check Price on Amazon

3. Bernie’s OMG! Omegas Chews: Best Chew With Disclosed EPA/DHA

Most skin chews hide their omega-3 numbers. Bernie’s lists them: 140 mg EPA and 125 mg DHA per 3 g chew, from anchovy oil and marine algal oil, plus green tea extract and vitamin E.

A 50 lb dog takes 2 chews a day (the 26–50 lb row), or 530 mg EPA+DHA. That’s less than half of what Grizzly or Nordic deliver, but it’s the strongest chew we tested by a wide margin.

Bernie’s advertises “5X” more DHA and EPA. That comparison is against joint supplements, not fish oils, so we don’t use it here.

Bernie’s OMG! Omegas Chews (Salmon, 90 ct)

Best For: Dogs that refuse oil, and owners who want a chew with real EPA/DHA numbers

Cost Per Day: About $0.64–$0.71 for a 50 lb dog (2 chews; $31.99 per 90-count jar on Amazon, $28.79 with Subscribe & Save)

Why It Made the List?

• The only chew in our test that publishes EPA and DHA in milligrams: 140 mg EPA and 125 mg DHA per chew
• Delivers 2.5× the EPA+DHA of the next-best chew we compared
• Combines anchovy oil and marine algal oil, with green tea extract and vitamin E

Key Specs

• Omega-3s and calories: 265 mg EPA+DHA per chew; 530 mg a day at 50 lb; 11 kcal per chew
• Format and use: soft chew, 90 per jar, in Salmon or Pork flavor; labeled for dogs of all ages
• Key ingredients: omega-3 powder, anchovy oil, marine microalgal oil, natural vitamin E, green tea extract; contains dried whey and brewers yeast (Pork flavor adds pork liver)

Honest Take

• Bernie’s “5X” claim compares against joint supplements, not fish oils. We did not find an NASC seal on the product page.
• Choose the Salmon flavor for dogs with a pork sensitivity. Both flavors contain dairy (dried whey). No FDA recalls found as of October 1, 2026.
• Most common owner report: dogs like the taste and coats feel softer, at 4.4★ across 286 Amazon ratings with the Amazon’s Choice badge. Most common complaint: critical reviews are rare (4% at 1–2 stars on Walmart), though some Walmart reviews were collected through a promotion.

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4. Zesty Paws Omega Bites: Best for Picky Eaters

Zesty Paws is the chew most dogs eat without a fight. Amazon’s review tags lean positive on taste and pet preference, and it holds about 29,000 ratings at 4.4★.

Its weak spot is the dose. Zesty’s own product page lists 80 mg EPA and 25 mg DHA per 4 g chew. At 2 chews a day for a 50 lb dog, that’s 210 mg EPA+DHA, the lowest of the fish-based options here.

It also isn’t purely a skin product. The listing covers joints, heart and immune support, and it adds biotin, zinc and vitamins C and E.

Zesty Paws Omega Bites (Chicken, 250 ct)

Best For: Picky dogs that refuse oil, where getting any supplement in matters more than the dose

Cost Per Day: About $0.60 for a 50 lb dog (2 chews, $74.97 for 250 count)

Why It Made the List?

• Amazon review tags lean positive on taste and pet preference across about 29,000 ratings
• Carries the NASC Quality Seal and is made in the USA
• The 250-count jar lasts about 4 months for a 50 lb dog

Key Specs

• Omega-3s and calories: 105 mg EPA+DHA per chew per Zesty Paws’ product page; 210 mg a day at 50 lb; 18 kcal per chew
• Format and use: soft chew, 250 per jar; the label says safe use in pregnant or breeding dogs hasn’t been proven
• Key ingredients: pollock oil (AlaskOmega), DHAgold algae, cod liver oil; contains natural chicken flavoring, pea flour and garbanzo flour

Honest Take

• It’s the lowest-dose fish option here, at about $2.86 per 1,000 mg EPA+DHA, roughly 13 times Grizzly’s cost. Some retailer listings show even less EPA per chew, and the jar label isn’t shown on Amazon.
• Omega Bites was not among the eight Zesty Paws chews in a February 2025 recall by manufacturer Petdine for possible Salmonella. Per FDA Enforcement Report records, those lots went to a single customer in Illinois and weren’t distributed further.
• Most common owner report: dogs take them like treats. Most common complaint: digestibility is a mixed point in reviews, and about 7% of Amazon ratings are 1–2 stars.

Check Price on Amazon

5. VetIQ Skin & Coat Soft Chews: Best Budget, Fish-Free Option

VetIQ is the cheapest chew here, at about $0.40 a day. It’s also the only chew with no fish at all. Its omegas come from flaxseed, olive and safflower oils, with zinc, biotin and vitamins A and E.

That makes it useful for a dog with a fish sensitivity. But because flax supplies ALA rather than EPA and DHA, it won’t match a fish oil on omega-3s.

We link the 2-pack of 60-count pouches. It’s sold by Amazon, carries the Amazon’s Choice badge, and costs slightly less per chew than the single 90-count bag.

VetIQ Skin & Coat Soft Chews (2 × 60 ct)

Best For: Tight budgets and dogs that can’t have fish

Cost Per Day: About $0.40 for a 50 lb dog (2 chews, $23.74 for 120 chews)

Why It Made the List?

• Lowest daily cost of any chew in our test
• Fish-free: omegas come from flaxseed, olive and safflower oils
• NASC certified and made in the USA at VetIQ’s Utah facility

Key Specs

• Omega-3s and calories: no EPA or DHA (flax-based ALA); calories not listed
• Format and use: hickory smoke soft chew, 2 × 60 count; 2 chews a day for dogs 31–60 lb
• Key ingredients: flaxseed meal and oil, olive oil, safflower oil, zinc proteinate, biotin; contains pork liver, cultured skim milk and pea

Honest Take

• Because it relies on ALA, it won’t match a fish oil on omega-3s. The label suggests doubling the dose for the first 2–3 weeks; if your dog has a sensitive stomach, ask your vet whether to skip the doubling phase.
• Skip it for dogs sensitive to pork, dairy or peas. No FDA recalls found as of October 1, 2026.
• Most common owner report: high overall satisfaction, at 4.6★ across about 300 Amazon ratings. Most common complaint: chews arriving crushed, plus two reports of vomiting after starting.

Check Price on Amazon

6. Dinovite for Dogs: Best All-in-One Gut and Skin Powder

Dinovite isn’t an omega-3 supplement in the same sense as the oils above. It’s a powder built on ground flaxseed, kelp, yeast, zinc and eight probiotic strains, sold in size-specific bags.

It suits owners who want one scoop covering digestion and skin together. The Amazon listing’s directions call for one large scoop (about 24 g) a day, built up over 12 days from a quarter serving. A graphic on the same listing shows 3 scoops for large dogs, so check which scoop comes in your bag and follow the label printed on it.

It’s also the most expensive option we compared, at $1.06–$1.18 a day on Amazon. The label guarantees no omega-3 level at all.

Dinovite for Large Dogs (90 Servings)

Best For: Dogs with both digestive and coat concerns whose owners prefer a single powder

Cost Per Day: $1.06–$1.18 for a 50 lb dog ($105.99 on Amazon, $95.39 with Subscribe & Save, for the 90-serving Large bag)

Why It Made the List?

• The only option here combining eight probiotic strains, zinc and omegas in one scoop
• One 5.3 lb bag covers 90 days for a large dog
• Brand-advertised 90-day money-back guarantee (check whether it covers Amazon orders)

Key Specs

• Omega-3s and calories: no EPA or DHA (flax-based ALA) and no omega-3 level guaranteed; about 100 kcal a day (calculated from Chewy’s 102 kcal per 24 g scoop)
• Format and analysis: powder for large dogs (45+ lb), not for puppies under 6 months; crude protein 10% min, crude fat 10% min, crude fiber 17% max (per Chewy’s listing, which may reflect older packaging)
• First 5 ingredients (Dinovite’s site): milled flaxseed, ground grain sorghum, yeast culture, dried kelp, yucca schidigera extract

Honest Take

• It’s the most expensive option per day, and Dinovite’s site lists ground sorghum (a grain) second even though its FAQ says the product has no grains.
• Skip it for dogs sensitive to yeast. Follow the 12-day ramp-up to limit stomach upset. No FDA recalls found as of October 1, 2026.
• Most common owner report: softer coats and less shedding after 3 weeks to 3 months, at 4.1★ across about 3,000 Amazon ratings with the Amazon’s Choice badge. Most common complaint: 12% of Chewy ratings are 1-star, the highest share in this list, and one detailed review says a dog’s itching got worse after starting.

Check Price on Amazon

Also Considered: Native Pet Omega 3 Fish Oil

Native Pet is a bestseller, ranking #2 in Dog Fish Oil Supplements on Amazon. We left it off for three reasons.

Its label lists 920 mg of total omega-3, 6 and 9 per teaspoon, but doesn’t break out EPA or DHA. It contains wheat germ oil, which matters for dogs with suspected wheat sensitivities. And at about $0.62 a day for a 50 lb dog, it costs more than Grizzly or Nordic while telling you less about what’s inside.

Side-by-Side Comparison

Grizzly costs about $0.22 per 1,000 mg of EPA+DHA. Bernie’s costs about 6 times that, and Zesty Paws about 13 times. All figures are for a 50 lb dog at the label dose.

Prices checked October 1, 2026. Prices change often, so confirm before you buy.

How to Choose the Right One for Your Dog

Match the product to your dog’s situation. Each scenario below points to one pick.

You have a large dog or more than one dog

Grizzly Salmon Plus is the one to buy. It’s the cheapest way to deliver a full EPA+DHA dose, and a large or multi-dog household will finish the 32 oz within the 90-day freshness window.

Your dog takes medication or has a health condition

Here, Nordic Naturals Omega-3 Pet makes the most sense. Its two-ingredient formula and published testing make it the easiest product to review with your veterinarian.

Talk to your vet before starting any fish oil if your dog takes blood thinners or anti-inflammatory drugs, or has surgery coming up. Fish oil can affect clotting.

Your dog refuses oil on their food

Try Bernie’s OMG! Omegas (Salmon flavor) first, since it’s the strongest chew. If even that gets refused, Zesty Paws Omega Bites is the easier sell, at a lower dose.

Your dog can’t have fish, or money is tight

VetIQ Skin & Coat is fish-free and the cheapest chew per day. Just know it supplies ALA, which dogs convert poorly, so it won’t match a fish oil on EPA or DHA.

Your dog has digestive issues too

If you want one powder covering gut and coat support, Dinovite for Dogs is built for that. Expect to pay the most per day, and follow the 12-day ramp-up to limit stomach upset.

Safety Notes Before You Start

Skin supplements are generally well tolerated, but a few precautions apply to every product on this list.

• Start low and build up. Bernie’s suggests starting at half the full serving. Dinovite builds up over 12 days, starting at a quarter serving. Zesty Paws says to begin with half. A slow start makes loose stool or vomiting less likely.
• Count the calories. At a 50 lb dose, the oils add 39–80 kcal a day. For an overweight dog, trim treats or food slightly to make room.
• Watch for stomach upset. Soft stool, gas or vomiting in the first week usually means the dose went up too fast. Drop back and increase more slowly.
• Check with your vet first if your dog has a history of pancreatitis, a bleeding disorder, or upcoming surgery. Extra dietary fat and fish oil’s effect on clotting can matter in these cases. Grizzly’s label specifically warns against use in dogs with bleeding disorders unless your veterinarian directs it.
• Stop if itching gets worse. A new ingredient can occasionally trigger a reaction. If scratching increases after starting a supplement, stop it and call your vet.
• Use pet products only. Human fish oils can contain flavorings or added vitamins that aren’t dosed for dogs.

Frequently Asked Questions

Final Recommendation

For most dogs with dry, itchy skin, Grizzly Salmon Plus is the best place to start. At 2 pumps a day, a 50 lb dog gets about 1,350 mg EPA+DHA for roughly $0.30. The 32 oz suits large or multi-dog homes best.

If you want the cleanest label, or your dog is on medication, choose Nordic Naturals Omega-3 Pet. If your dog won’t eat oil, Bernie’s OMG! Omegas is the chew that tells you exactly what’s inside. The other three picks fit narrower needs, covered in the scenarios above.

Whichever you choose, give it 6–8 weeks at the full label dose before judging results. If the itching hasn’t improved by then, or gets worse, it’s time for a vet visit to look for the cause.

Sources

Prices, ratings and label data were checked October 1, 2026.

• Grizzly Salmon Plus 32 oz, Amazon listing and label
• Nordic Naturals Omega-3 Pet, Chewy listing (guaranteed analysis, dosing, reviews)
• Nordic Naturals Omega-3 Pet 8 oz, Amazon listing
• Bernie’s OMG! Omegas Chews, Bernie’s product page (guaranteed analysis, dosing)
• Bernie’s OMG! Omegas Chews (Salmon), Amazon listing
• Zesty Paws Omega Bites, Zesty Paws product page (guaranteed analysis)
• Zesty Paws Omega Bites 250 ct, Amazon listing
• VetIQ Skin & Coat, Amazon listing (60-count and 2-pack options)
• Dinovite for Dogs, Dinovite product page (ingredients, dosing, pricing)
• Dinovite Large Dog Supplement, Chewy listing (guaranteed analysis, reviews)
• Dinovite Probiotics for Large Dogs, 90 Servings, Amazon listing (price, directions, ratings)
• Enhanced omega-3 index after long- versus short-chain omega-3 fatty acid supplementation in dogs, Veterinary Medicine and Science (2020)