Home › Pet › Greenies vs Whimzees Dental Chews 2026: Which Cleans Teeth Better?
Greenies vs Whimzees Dental Chews 2026: Which Cleans Teeth Better?
By MyAwesomeBuy Research Team · Updated April 14, 2026 · Our Methodology
5 models compared82,019+ reviews analyzed
No manufacturer paid for placement. Rankings based on verified buyer review data.
Quick Answer
Greenies wins for cats and households that want one trusted brand for multiple pets — Feline Greenies are the gold standard dental treat for cats, while Original Greenies cover dogs. Whimzees wins on natural ingredients — the rice flour, potato starch, and glycerin recipe has no artificial colors, flavors, or preservatives, making it ideal for dogs with food sensitivities. For picky dogs who reject Greenies' flavor, Whimzees' vegetable-based variety shapes are often the accepted alternative.
Quick Verdict: Our top pick is the Greenies Original Dental Dog Treats Large 36oz 24 Count (Best for Large Dogs) — Greenies Original Large 36oz 24-count. Priced at $36.97.
Budget Pick: The FELINE GREENIES Adult Dental Cat Treats Oven Roasted Chicken Flavor 2.1 oz at $3.28 — Feline Greenies cat dental treats.
Great for: Dog owners who want easy daily dental hygiene without brushing, and anyone reducing plaque buildup between vet cleanings
Greenies Original Dental Dog Treats Large 36oz 24 ...
Not ideal if: Your dog has severe dental disease — chews are maintenance, not treatment; a vet cleaning is the required first step
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Both Greenies and Whimzees hold the VOHC seal, which means both have clinical evidence supporting plaque and tartar reduction when used as directed. The VOHC seal is meaningful because it distinguishes products with actual clinical trial data from the many dental chews that make unverified claims.
Greenies is the dominant brand partly because of early market entry and partly because of extensive availability — every pet store, grocery store, and online retailer stocks Greenies. The Original formula uses a highly digestible texture that softens during chewing to clean along the gumline. Veterinarians frequently recommend Greenies because it has the longest track record and the most clinical support.
Head-to-Head Comparison
Whimzees differentiates on ingredients. The all-natural vegetable-based recipe (rice flour, potato starch, glycerin, cellulose powder) has no meat, no artificial colors, no preservatives, and no wheat. For dogs with chicken or beef sensitivities who react to Greenies' poultry-based formula, Whimzees is often the alternative that works without triggering allergies.
The unique shapes in Whimzees — Alligator, Brushzees, Stix — create different textures that reach different parts of the tooth surface during chewing. The Brushzees toothbrush shape with bristle-like nubs is specifically designed to mimic mechanical brushing action along the gumline.
Frequency matters for both brands: once daily is the recommended use for meaningful plaque reduction. A single daily chew is more effective than intermittent use.
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Greenies Original Dental Dog Treats Large 36oz 24 Count
$36
at Amazon
Best for: Large dogs needing VOHC-accepted daily dental treat for plaque control
“Greenies Large dental treats combine meaningful tartar reduction with a flavor most dogs find irresistible. Daily use during brushing-resistant dog ownership is genuinely effective.”
VOHC-accepted with clinical evidence for plaque and tartar reduction when used daily. Highly digestible texture softens during chewing to flex around teeth and clean the gumline. 36oz bulk supply at $36.97 reduces per-chew cost for daily use. Poultry flavor is accepted by most dogs without palatability issues. Appropriate for large dogs 50-100 lbs. 4.8 stars at $36.97. Best dental chew for large dogs — most veterinarian-recommended formula with the longest clinical track record.
Full Specs & Measurements
Upc
014891420984
Asin
B006W6YHV4
Flavor
Original
Occasion
Christmas
Pet Type
Dog
Item Form
Bone
Brand Name
Greenies
Unit Count
36.0 Ounce
Item Weight
36 Ounces
Manufacturer
Mars Petcare US
Model Number
10096457
Container Type
Pouch
Dog Breed Size
Large
Item Type Name
Dog Natural Dental Treats
Target Species
Dog
Number Of Items
1
Product Benefits
Promotes oral health and fresh breath
Best Sellers Rank
#83 in Pet Supplies (See Top 100 in Pet Supplies) #15 in Dog Treat Cookies, Biscuits & Snacks
Additional Features
Unique textured surface that cleans down to the gumline
Best for: Cats needing daily crunchy dental treats that freshen breath and clean teeth
“Feline Greenies dental treats are one of the few cat dental products with an VOHC seal for plaque reduction. Effective only if the cat chews thoroughly, which many adult cats naturally do.”
Specifically formulated for feline teeth, jaw strength, and dietary needs — not a scaled-down dog treat. VOHC-accepted for plaque control in cats. Oven roasted chicken flavor appeals to most cats. Crunchy texture mechanically removes plaque during chewing. Small size suitable for adult cats. Daily use reduces tartar accumulation in cats who accept them. 4.7 stars at $3.28. Best dental treat for cats — only widely available brand with VOHC certification for feline plaque control.
Full Specs & Measurements
Upc
642863111303
Asin
B0828W6NXJ
Flavor
Chicken
Occasion
Christmas
Pet Type
Cat
Item Form
Wafer
Brand Name
Greenies
Unit Count
2.1 Ounce
Item Weight
2.1 Ounces
Manufacturer
Mars Petcare US
Model Number
10205248
Container Type
Pouch
Item Type Name
Cat Treats
Target Species
Cat
Number Of Items
1
Product Benefits
Cleans teeth, reduces tartar, freshens breath
Best Sellers Rank
#66 in Pet Supplies (See Top 100 in Pet Supplies) #3 in Crunchy Cat Treats
Additional Features
Odor Resistant
Special Ingredients
Natural
Breed Recommendation
All Breed Sizes
Warranty Description
"N/A"
Age Range Description
Adult
Animal Food Diet Type
Limited Ingredient
Manufacturer Part Number
10205248
Specific Uses For Product
Dental Care
Animal Food Ingredient Claim
No Artificial Flavors
Recommended Uses For Product
Dental Care
Global Trade Identification Number
00642863111303
Worth Considering
Whimzees Wellness Alligator Dog Dental Treats, Small Size, (24 Count)
$15
at Amazon
Best for: Small dogs needing fun alligator-shaped natural vegan dental chews
“Whimzees Alligator dental chews have a texture that forces dogs to gnaw rather than bite through, extending cleaning time. The plant-based formula avoids common allergens found in many competing denta”
All-natural vegetable-based recipe (rice flour, potato starch, glycerin, cellulose) with no meat, artificial colors, flavors, or preservatives. VOHC-accepted for plaque reduction. Alligator shape creates unique chewing surface that contacts multiple tooth surfaces during use. Best for dogs with chicken or beef sensitivities who reject meat-based dental chews. 24-count at $15.18. 4.7 stars. Best dental chew for dogs with food sensitivities or owners who want a natural, allergen-free formula.
Full Specs & Measurements
Upc
815436015487
Asin
B01F71E5Z2
Flavor
Dental
Occasion
Birthday
Item Form
Treat
Brand Name
Whimzees
Unit Count
12.7 Ounce
Item Weight
0.8 Pounds
Manufacturer
Wellness Pet LLC
Model Number
WZ306
Container Type
Bag
Dog Breed Size
Small
Item Type Name
Dental Treat
Target Species
Dog
Number Of Items
24
Best Sellers Rank
#1,104 in Pet Supplies (See Top 100 in Pet Supplies) #145 in Dog Treat Cookies, Biscuits & Snacks
Special Ingredients
No Artificial Color,Natural
Allergen Information
Gluten Free, Soy Free, Wheat Free
Breed Recommendation
All Breed Sizes
Warranty Description
The Wellness Guarantee: If for any reason you or your dog are not satisfied with this product, return it to Amazon for a refund.
Age Range Description
Adult
Animal Food Diet Type
Vegetarian
Manufacturer Part Number
WZ306
Specific Uses For Product
Breath Care, Dental Care
Animal Food Ingredient Claim
No Artificial Colors
Global Trade Identification Number
00815436015487
Worth Considering
Whimzees Wellness Brushzees Dog Dental Treats, Small Size Stick, (24 Count)
$15
at Amazon
Best for: Small dogs needing brush-shaped chews that mechanically clean tooth surfaces
“The Brushzee toothbrush-shaped design is specifically engineered for back molar cleaning where most dental chew contact is lost. A well-differentiated product for owners whose dogs chew methodically.”
Toothbrush shape with textured bristle-like nubs specifically designed to mechanically clean along the gumline — different cleaning action from standard chew shapes. All-natural vegetable recipe, no artificial ingredients. Small size for dogs 7-15 lbs. VOHC-accepted formula. Great for dogs who chew slowly and work the chew across multiple tooth surfaces. 4.6 stars at $15.39. Best dental chew for targeted gumline cleaning action in small dogs.
Full Specs & Measurements
Upc
815436015456
Asin
B01K6YODPM
Flavor
Dental Small
Occasion
Birthday
Pet Type
Dog
Item Form
Treat
Brand Name
Whimzees
Unit Count
24 Count
Item Weight
0.8 Pounds
Manufacturer
Wellness Pet LLC
Model Number
WHZ302
Container Type
Bag
Dog Breed Size
Small
Item Type Name
Dental Treat
Target Species
Dog
Number Of Items
24
Product Benefits
Reduces tartar and plaque, freshens breath, supports dental health
Best Sellers Rank
#219 in Pet Supplies (See Top 100 in Pet Supplies) #38 in Dog Treat Cookies, Biscuits & Snacks
Additional Features
Veterinary recommended and VOHC approved, supports 4 key dental areas
Special Ingredients
grain-free
Allergen Information
Gluten Free, Soy Free, Wheat Free
Breed Recommendation
All Breed Sizes
Warranty Description
The Wellness Guarantee: If for any reason you or your dog are not satisfied with this product, return it to Amazon for a refund.
Age Range Description
Adult
Animal Food Diet Type
Vegetarian
Manufacturer Part Number
WHZ302
Specific Uses For Product
teeth
Animal Food Ingredient Claim
No Artificial Flavors
Recommended Uses For Product
Dental care and oral hygiene for dogs
Global Trade Identification Number
00815436015456
Best Budget
Whimzees by Wellness Stix Natural Dental Chews for Dogs Medium 14 Count
$15
at Amazon
Best for: Health-focused owners wanting all-natural vegan dental chews for medium dogs
“Whimzees are one of the few dental chews with a texture dogs genuinely have to work through. The plant-based ingredient list makes them a good choice for dogs with protein sensitivities.”
Cylindrical Stix shape provides even chewing surface contact for medium dogs 25-40 lbs. All-natural vegetable formula — same allergen-free recipe as Alligator and Brushzees. Consistent shape means predictable chewing pattern and no unexpected breakage mid-chew. Natural light green color from vegetable ingredients (no artificial dyes). 4.6 stars at $15.50. Best all-natural dental chew for medium dogs wanting consistent daily cleaning at a competitive per-chew price.
Full Specs & Measurements
Upc
815436015685
Asin
B017EN7HX8
Flavor
Classic Stix
Occasion
Birthday
Item Form
Chews
Brand Name
Whimzees
Unit Count
14 Count
Item Weight
14.93 ounces
Manufacturer
Wellness Pet LLC
Model Number
WHZ317
Container Type
Bag
Dog Breed Size
Medium
Item Type Name
Dental Treat
Target Species
Dog
Number Of Items
1
Product Benefits
Cleans teeth, freshens breath, reduces plaque and tartar
Best Sellers Rank
#774 in Pet Supplies (See Top 100 in Pet Supplies) #107 in Dog Treat Cookies, Biscuits & Snacks
Additional Features
Dental health support, longer chew time for better cleaning
Special Ingredients
No Artificial Color,Natural
Allergen Information
Peanuts
Breed Recommendation
All Breed Sizes
Warranty Description
The Wellness Guarantee: If for any reason you or your dog are not satisfied with this product, return it to Amazon for a refund.
Age Range Description
Adult
Animal Food Diet Type
Vegetarian
Manufacturer Part Number
WHZ317
Specific Uses For Product
Teeth
Animal Food Ingredient Claim
No Artificial Colors
Recommended Uses For Product
Dental Care
Animal Food Nutrient Content Claim
Low Fat
Global Trade Identification Number
00815436015685
Frequently Asked Questions
Do Greenies actually clean dogs teeth?
Yes — Greenies Original Dental Dog Treats carry the VOHC (Veterinary Oral Health Council) seal, meaning they have passed controlled clinical trials demonstrating measurable plaque and tartar reduction when used daily. The highly digestible texture softens and flexes around teeth during chewing to clean the tooth surface and gumline. Daily use over 28+ days produces statistically significant tartar reduction in clinical studies.
Are Whimzees safe for dogs?
Yes, Whimzees are safe for healthy adult dogs. The all-natural vegetable-based recipe — rice flour, potato starch, glycerin — avoids common allergens including chicken, beef, and wheat. They are free of artificial colors, flavors, and preservatives. Whimzees are fully digestible and VOHC-accepted. As with any dental chew, supervise dogs while chewing and choose the correct size to prevent gulping.
Which is better — Greenies or Whimzees?
Both are VOHC-accepted with clinical evidence for plaque reduction, so the better choice depends on your dog. Greenies is better for most dogs — broader size range, both dog and cat formulas, and the most veterinarian recommendations. Whimzees is better for dogs with food sensitivities, grain concerns, or dogs who reject Greenies' flavor — the natural vegetable-based recipe is hypoallergenic by design.
Are Greenies good for cats?
Yes — Feline Greenies are specifically formulated for cats and carry the VOHC seal for feline dental health. They come in chicken, salmon, and tuna flavors that appeal to cats. The texture is designed for feline teeth and jaw strength, smaller than dog Greenies. Daily use of Feline Greenies reduces tartar accumulation significantly in cats who will accept them willingly.
How often should I give my dog dental chews?
Once daily is the recommended frequency for both Greenies and Whimzees — daily use produces the most consistent plaque control. The VOHC efficacy studies are based on once-daily use. Giving one chew per day at a consistent time (after meals works well) establishes a routine dogs anticipate, which helps with acceptance. Giving multiple chews per day does not proportionally increase dental benefit and adds unnecessary calories.
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