Oxbow Natural Science Joint Support, Anti Inflammatory Supplement for Rabbit & Guinea Pig, Oxbow Timothy Hay, Made with Glucosamine, Turmeric, & Yucca, Made in USA, 4.2 oz Bag Review
By Marcus Bell · Dog nutrition editor · Published 2026-06-02 · Updated 2026-06-17
4.8(1,700)Amazon rating$7.192,000+ bought last month
Our verdict
This Oxbow wafer is formulated for rabbits and guinea pigs, not dogs, so it does not belong in a dog's supplement routine even though it surfaces alongside dog hip and joint products.
Rabbit and guinea pig owners looking for a glucosamine, turmeric and yucca joint wafer, not dog owners.
Skip if
You have a dog. This product is made for small animals like rabbits and guinea pigs and is not labeled or dosed for canine use.
Form Wafer
Flavor Timothy Hay
Benefits Joint Health
Best for Joints
Breed size Small
Weight 4.2 Ounces
Priced 78% below the category median ($32.91 across 92 tracked models)
Our scorecard
4.8/5overall
Owner rating4.8/5
4.8 average across 1,700 owner ratings
Popularity2.7/5
1,700 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog food and health supplements we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
Oxbow's Natural Science Joint Support is a Timothy hay based wafer built for small animals. The product's own listing calls out rabbits and guinea pigs by name and lists chinchilla as the target species, and it shows up in dog joint supplement searches without ever being formulated for dogs.
The wafer combines glucosamine with turmeric and yucca, ingredients that also appear in some dog joint formulas, but the dosing, form and label guidance behind this product are built around small herbivores. There is no dog specific serving information anywhere on the listing.
At 7.19 dollars per 4.2 ounce bag it holds a strong 4.8 star average across about 1,700 ratings, feedback that reflects its intended rabbit and guinea pig audience rather than any dog owner's experience.
Pros
Strong 4.8 star average among its intended small animal audience
Made in the USA with a short, recognizable ingredient list
Timothy hay base that rabbits and guinea pigs readily accept
Cons
Not formulated, dosed or labeled for dogs
No dog specific serving guidance exists for this product
Better joint options for dogs are available elsewhere on this page
Specifications
Form
Wafer
Flavor
Timothy Hay
Benefits
Joint Health
Best for
Joints
Breed size
Small
Weight
4.2 Ounces
Performance notes
The wafer is built on Timothy hay with added glucosamine, turmeric and yucca, and the brand's own product data lists chinchilla as the target species with rabbit and guinea pig named in the title. There is no dog dosing information because the product was not designed for canine use.
What buyers say
A 4.8 star average across roughly 1,700 ratings and about 2,000 units bought in the past month reflect a well liked product among small animal owners, though that feedback comes from rabbit and guinea pig households, not dog owners.
It was not formulated, dosed or labeled for dogs, so there is no reliable guidance for canine use. Talk to your vet before giving your dog any supplement that is not labeled for dogs.
What animals is it actually made for?
The product is labeled for rabbits and guinea pigs, and the manufacturer's own data lists chinchilla as the target species.
Why does it show up on a dog joint supplement list?
It shares ingredients like glucosamine with many dog formulas and can get grouped into general pet joint supplement searches, but the labeling and dosing are specific to small animals, not dogs.
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