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Groomer brushing a corgi's coat on a grooming table

Dog Dandruff: Causes and Gentle Fixes That Work

Dog dandruff is flaky, dead skin in the coat, most often seen along the back and near the tail. The most common causes are dry air, bathing too often or with a harsh shampoo, and a diet low in fatty acids, and these usually improve with a gentle moisturizing shampoo, fewer baths, regular brushing and a humidifier. Flakes that come with greasy skin, redness, hair loss, a strong smell or intense itching can mean seborrhea, yeast, allergies or mites, and those need a vet.

This guide helps you tell the two apart and lays out a simple routine for the everyday kind.

What dog dandruff is

Skin renews itself all the time. Old cells move to the surface and shed in pieces too small to notice. When that process speeds up or the skin gets too dry, the pieces clump into visible white flakes. That is dandruff.

Vets sometimes call flaky skin seborrhea. Dry seborrhea means dry flakes and a dull coat. Oily seborrhea means greasy, yellowish scale, often with a smell. Some dogs, like cocker spaniels, West Highland white terriers and basset hounds, are born more prone to it. In most other dogs, flaking is a sign that something else is going on, and fixing that is what makes the flakes stop.

Common causes of dandruff in dogs

Dry air

Winter heating and air conditioning pull moisture from skin. Many dogs flake more from late fall through early spring.

Too many baths, or the wrong shampoo

This is the cause owners most often miss. Frequent bathing, human shampoo, dish soap and harsh cleansers strip the oils that keep skin supple. The skin dries out and flakes, the owner sees flakes and bathes again, and the cycle repeats.

Diet

Skin needs fatty acids, especially omega 3 and omega 6, to stay healthy. Some diets are low in them. Ask your vet before adding supplements, since the right dose depends on your dog.

Allergies

Environmental and food allergies inflame the skin, which speeds up cell turnover and causes flaking along with itch.

Yeast and bacteria

Malassezia yeast overgrowth often shows up as greasy flakes, a musty smell and itchy, reddened skin.

Parasites

Cheyletiella mites are sometimes called walking dandruff because the flakes seem to move. Fleas and other mites can also cause scaling. These are contagious to other pets and sometimes cause itchy bumps on people, so they need a vet diagnosis and treatment.

Other health problems

Hormonal conditions such as hypothyroidism, and some other diseases, can change the skin and coat. Flaking together with weight gain, low energy or hair loss is worth a vet check.

Everyday dandruff or something more

Use this as a quick guide. When in doubt, ask your vet.

  • Likely everyday dry skin: fine white flakes, mostly on the back, dog otherwise comfortable, little or no smell, worse in winter or after more baths than usual.
  • Likely something more: greasy or yellow flakes, a strong smell, red or dark skin, hair loss, scabs, constant scratching, flakes that move, or other pets and people in the home getting itchy.

A gentle routine for dry, flaky skin

1. Bathe less often

For many dogs with dry skin, the fastest improvement comes from simply spacing out baths to every three to six weeks. In between, wipe paws and belly after walks instead of doing a full bath.

2. Switch to a gentle, moisturizing shampoo

Look for a pH balanced dog shampoo with colloidal oatmeal, aloe or beta glucan, and without sulfates, dyes or strong fragrance. Let it sit on the skin for a few minutes before rinsing so the soothing ingredients have time to work. Our guide to the best shampoo for dogs with itchy skin explains how to read the label.

3. Rinse very well

Leftover shampoo dries on the skin and looks just like dandruff. Rinse until the water runs clear, then once more.

4. Condition

A light conditioner after shampooing helps the coat feel soft and makes brushing easier, especially for long or thick coats.

5. Brush several times a week

Brushing lifts loose flakes, spreads natural oils along the hair and helps you spot changes early. A soft bristle brush or rubber curry brush works well for most coats.

6. Add moisture to the air

A humidifier in the room where your dog sleeps helps a lot during heating season.

7. Check the diet and water

Make sure your dog eats a complete, balanced food and always has fresh water. Talk to your vet about omega 3 fatty acids if dry skin keeps coming back.

Groomer gently brushing a dog's coat to remove loose hair and flakes

What we use for flaky skin

Our Sensitive Pet Shampoo is made for dry, irritated and flaky skin. It combines oatmeal, collagen, prebiotics and beta glucan with fermented pomegranate and eucalyptus, which help reduce flaking by targeting Malassezia furfur. It is hypoallergenic and free of parabens, sulfates, dyes and synthetic fragrance. Follow it with our Prebiotic Pet Conditioner, which uses fermented apple cider vinegar to soften the coat and help detangle. Prefer no scent at all? Try the Fragrance Free Sensitive Pet Shampoo.

Brushing tips by coat type

  • Short, smooth coats such as beagles and boxers: a rubber curry brush once or twice a week lifts flakes and loose hair and feels like a massage.
  • Double coats such as retrievers, huskies and shepherds: an undercoat rake followed by a slicker brush reaches the skin, where flakes collect under the top layer.
  • Long or curly coats such as doodles, shih tzus and poodles: a slicker brush and a wide tooth comb, working in small sections. Mats trap flakes and moisture, so keep them out.

Always brush before a bath. Wetting a tangled coat tightens knots and keeps shampoo from reaching the skin.

When to see your vet

Please book a visit if flaking does not improve after three or four weeks of a gentle routine, or if you see greasy scale, redness, hair loss, sores, a strong smell, heavy scratching, or flakes that seem to move. Also see your vet if other pets or people in the house start itching. Your vet can take skin scrapings or tape samples to check for mites, yeast and bacteria, and recommend a medicated shampoo or other treatment if needed.

Frequently asked questions

How do you get rid of dandruff on dogs?

For everyday dry skin: bathe less often with a gentle oatmeal based dog shampoo, rinse thoroughly, condition, brush several times a week and add a humidifier. If flakes come with other symptoms, the cause needs to be diagnosed and treated.

Will coconut oil help dog dandruff?

Some owners rub a small amount into dry patches, but it can make the coat greasy, and dogs tend to lick it off. It does not treat yeast, mites or allergies. A moisturizing shampoo and conditioner designed for dogs is usually more practical. Ask your vet before adding oils to the diet.

What is the difference between dog dander and dandruff?

Dander is the tiny, invisible skin flakes every dog sheds, and it is what triggers most pet allergies in people. Dandruff is larger, visible flakes that point to dry or irritated skin.

How do I know if my dog has mites or dandruff?

Mites often cause more intense itching, and with Cheyletiella the flakes can appear to move. Other pets or people in the home may also get itchy. Only a vet can confirm mites, usually by looking at a skin sample under a microscope.

Is dog dandruff contagious to humans?

Ordinary dandruff is not. Dandruff caused by mites can be passed to other pets and sometimes causes a temporary itchy rash on people.