Best Dog Shampoo

The best dog shampoo isn't the same for every dog. A Golden Retriever who sheds year-round, a Bulldog with sensitive skin and a Labrador who rolls in everything all need something different. That's why we've organized our top-rated dog shampoos by need, so you can quickly find the best formula for your dog's skin and coat. Every shampoo in this collection is made for dogs, pH-balanced for canine skin and chosen for gentle cleaning and great results.

How We Choose the Best Dog Shampoos

  • Made for dogs: Formulated for canine skin, which is closer to neutral pH than human skin.

  • Gentle cleansers: Formulas that clean without stripping natural oils.

  • Proven ingredients: Oatmeal, aloe, coconut-derived cleansers and vitamin E for skin comfort.

  • Customer favorites: Shampoos pet parents trust and reorder.

  • Clear purpose: Each shampoo is chosen to solve a specific need.

Best Dog Shampoo by Need

Best Dog Shampoo for Itchy Skin

Colloidal oatmeal shampoos are the top pick for dry, itchy skin. They soothe and moisturize while cleaning gently. Leave the lather on for a few minutes before rinsing for the best results.

Best Hypoallergenic Dog Shampoo

For dogs with allergies or sensitive skin, choose fragrance-free, dye-free and sulfate-free formulas. These are also the best choice if you bathe your dog frequently.

Best Dog Shampoo for Smelly Dogs

Deodorizing shampoos neutralize odors rather than masking them with heavy perfume. If a strong smell returns quickly, check with your vet, as yeast, ear or skin problems can be the cause.

Best Dog Shampoo for Shedding

De-shedding shampoos and conditioners help loosen dead undercoat so it rinses and brushes out during bath time. Pair them with a deshedding brush from our dog grooming tools.

Best Puppy Shampoo

Gentle, tearless puppy shampoos are made for delicate young skin. Always check the minimum age on the label.

Best Shampoo for White Coats

Whitening and brightening shampoos help lift stains and dullness so light coats look clean and bright.

Best Natural Dog Shampoo

Plant-based shampoos with simple, recognizable ingredients are popular with owners who prefer natural products.

Best Waterless Dog Shampoo

No-rinse foams and sprays are perfect for seniors, travel and quick touch-ups. For even faster cleanups, see dog grooming wipes.

Best Flea Shampoo

Flea shampoos kill fleas on contact during an infestation. Follow up with lasting protection from our dog flea and tick collection.

Shampoo Ingredients to Look For

  • Colloidal oatmeal: Soothes and moisturizes itchy skin.

  • Aloe vera: Calms irritation and adds moisture.

  • Coconut-derived cleansers: Gentle cleaning without harsh stripping.

  • Vitamin E: Supports skin conditioning.

  • Shea butter and natural oils: Moisturize dry coats.

Ingredients to Avoid or Use with Caution

  • Human shampoo: Not pH-balanced for dogs and can dry or irritate skin.

  • Heavy artificial fragrances and dyes: Common irritants for sensitive skin.

  • Harsh sulfates: Can strip natural oils, especially with frequent baths.

  • Concentrated essential oils: Some, like tea tree oil in high concentrations, can be harmful. Choose products made and tested for dogs.

Tips for the Best Bath Results

  • Brush thoroughly before bathing to remove mats and loose hair.

  • Use lukewarm water and wet the coat down to the skin.

  • Lather gently and avoid the eyes and inside of the ears.

  • Let oatmeal or medicated shampoos sit for the time on the label.

  • Rinse completely, as leftover shampoo can cause itching.

  • Follow with conditioner for long, curly or dry coats.

  • Dry well and finish with a treat.

Most dogs do well with a bath every 4 to 8 weeks, depending on coat type, activity and skin health. Dogs with skin conditions may need a schedule recommended by your vet.

Support Skin and Coat from the Inside

Great coats start with nutrition. Omega-3s from fish oil support skin and shine. Explore dog skin and coat supplements and dog food for skin and coat.

When to Talk to Your Vet

If your dog has severe itching, red or broken skin, hair loss, a strong odor or hot spots that don't improve with a gentle shampoo, see your vet. Medicated shampoos may be needed for infections or skin conditions.

Best Shampoo by Coat Type

Short, smooth coats: Boxers, Beagles and similar breeds do well with gentle, everyday shampoos and don't usually need heavy conditioners.

Double coats: Huskies, Golden Retrievers and German Shepherds benefit from de-shedding shampoos and thorough rinsing so water and shampoo reach the undercoat.

Long and silky coats: Shih Tzus, Yorkies and Maltese need moisturizing shampoo plus conditioner to prevent tangles.

Curly coats: Poodles and doodles do best with hydrating formulas and detangling conditioner, followed by careful brushing.

Wire coats: Terriers often do best with gentle, texture-friendly shampoos that don't soften the coat too much.

Why Buy the Best Dog Shampoo at T-Rex Pets?

  • Top-rated shampoos organized by skin and coat need.

  • Subscribe & Save 5%: Auto-ship your dog's favorite shampoo before bath day.

  • Fast US delivery and 24/7 help at (208) 352-6050.

Find the perfect shampoo for your dog. Browse all options in our dog shampoo collection.

Frequently Asked Questions

What is the best dog shampoo?
The best dog shampoo depends on your dog's needs. Oatmeal shampoos are best for itchy skin, hypoallergenic formulas for sensitive skin, deodorizing shampoos for odor and de-shedding shampoos for heavy shedders. Always choose a shampoo made for dogs.
What is the best shampoo for a dog with itchy skin?
Colloidal oatmeal shampoos and hypoallergenic, fragrance-free formulas are top choices for itchy skin. If itching is severe or ongoing, see your vet to find the cause, as a medicated shampoo may be needed.
What shampoo do groomers use on dogs?
Groomers often use professional-grade dog shampoos chosen by coat type, such as oatmeal shampoos for sensitive skin, whitening shampoos for light coats and de-shedding formulas for double coats, followed by conditioner.
Is natural dog shampoo better?
Natural shampoos can be a great choice, especially for dogs with sensitivities, but natural doesn't always mean safer. Some essential oils can irritate or harm dogs. Choose natural formulas made and tested for dogs.
What is the best shampoo for a smelly dog?
A deodorizing dog shampoo that neutralizes odor works best. If the smell returns quickly after bathing, check your dog's ears, teeth and skin, and see your vet if needed.