Shape: The shape is a good design and has ridges and grooves to clean your dog’s teeth. The product is flexible so your dog can easily bite and pull at it. It can break, but is more flexible than brittle.
Size: I like how the chews come in various sizes for small, medium, and large dogs. Please choose the right size for your dog when purchasing this product. The wrong size can be harmful and could cause the dog to choke.
Ingredients: The ingredients are good, but I am not completely backing all of what this product is made of. The top ingredients are wheat flour, wheat protein isolate, glycerin, and gelatin. My only complaint is that the above ingredients tend to be cheaper, “filler” ingredients that manufactures use in order to cut costs. I am not suggesting these are harmful to your dog, rather I am stating that they are not exactly the most nutrition for your dog. However, Greenies does provide your dog with good amino acids and vitamins such as E, B12, B5, and so on.
Use: I think Greenies do work in cleaning your dog’s teeth and keeping their breath fresh. Only one of my dogs has used the product and she seemed to like the taste. My dog also had fun chewing the Greenies dental chews for a while.
My opinion: Greenies Grain Free Dental Chews are one of the better dental chews available and does produce good results. I personally would not rely only on a dental chew for good dental hygiene. I recommend also using a toothbrush design for dogs or a finger brush design for dogs in addition to dental chews and bones to get adequate dental hygiene results. I do not recommend this product if you own a very small dog like a Chihuahua. Always consult your veterinarian for proper dental hygiene and to determine what product is best to use for your dog.