Quick answer
Natural Dog Company Collagen Chews offer a genuine 4-type collagen blend — bovine types I and III, marine type I, and eggshell-membrane types I, V and X — plus vitamin C and hyaluronic acid, in a palatable chew. It’s a strong multi-type chew for skin, coat and joints, with the usual chew trade-offs on dosing precision and absorption.
What the current label lists
| Active | Detail |
|---|---|
| Bovine collagen | Types I & III (hydrolyzed) |
| Marine collagen | Type I |
| Eggshell membrane | Types I, V, X |
| Vitamin C + hyaluronic acid | Included |
Strengths
- Genuine 4-type collagen blend plus eggshell membrane
- Vitamin C supports the dog’s own collagen synthesis
- Hyaluronic acid for joint lubrication
- Palatable chew; competitive price
Limitations
- Chew format = less precise dosing, lower absorption than a liquid
- Contains marine, bovine and turkey — check allergies
- No studied UC-II dose
Read alsoCompare it against the full field — see where it lands in our tested top 5.
Read alsoWhy a UC-II + hydrolyzed liquid leads — the most complete option combines the joint and skin forms.
Pure Majesty Pets Liquid Collagen for Dogs — actives per 2 mL serving
| Active ingredient | Per 2 mL |
|---|---|
| Hydrolyzed collagen peptides (Type I & III) | 462 mg |
| Undenatured type II collagen (UC-II) | 48 mg |
| Micro-emulsified salmon oil (omega-3 EPA/DHA) | ~126 mg |
| Pork bone broth concentrate | ~126 mg |
| MSM (methylsulfonylmethane) | ~63 mg |
| L-glutamine | ~52 mg |
| Tyndallized S. boulardii postbiotic | ~21 mg |
| Low-molecular-weight hyaluronic acid | ~8.4 mg |
| Vitamin C (sodium ascorbate) | ~4.2 mg |
| Ginger root extract | ~4.2 mg |
| Natural astaxanthin | ~0.5 mg |
Manufacturer-published formulation, current as of July 2026, per 2 mL daily serving. Ingredient amounts describe the contents; the individual actives have published evidence (below), but this exact multi-active blend has not been tested as a finished product in a controlled canine trial. Introduce gradually and check with your vet if your dog has kidney disease or a protein-restricted diet.
Frequently asked questions
Are Natural Dog Company Collagen Chews good?
Yes — a genuine 4-type collagen blend with eggshell membrane, vitamin C and HA in a palatable chew. Good all-round skin/coat/joint support; a liquid doses and absorbs better, and this has no studied UC-II dose.
What collagen types are in Natural Dog Company chews?
Bovine types I and III, marine type I, and eggshell-membrane types I, V and X — a true four-type blend — plus vitamin C and hyaluronic acid.
Do these chews have UC-II?
No — they use hydrolyzed collagen and eggshell membrane, not a studied UC-II dose. For a joint priority, choose a product with labeled UC-II.
Sources
- Gupta RC, Canerdy TD, Lindley J, et al. Comparative therapeutic efficacy and safety of type-II collagen (UC-II), glucosamine and chondroitin in arthritic dogs: pain evaluation by ground force plate. Journal of Animal Physiology and Animal Nutrition. 2012;96(5):770–777. doi:10.1111/j.1439-0396.2011.01166.x
- Dobenecker B, Böswald LF, Reese S, et al. The oral intake of specific bioactive collagen peptides improves gait and quality of life in canine osteoarthritis patients. PLoS One. 2024;19(9):e0308378. doi:10.1371/journal.pone.0308378
Veterinary disclaimer. This article is educational and is not a substitute for professional veterinary advice, diagnosis, or treatment. Collagen is a supplement, not a drug, and is not a treatment for arthritis or any disease. Talk to your veterinarian before starting any supplement, especially if your dog has kidney disease, is on a protein-restricted diet, is pregnant, or has food allergies.