Key Ingredients  ·  Research Summary

Hyaluronic acid is a naturally occurring molecule in synovial fluid — the lubricant that keeps joints moving smoothly. As dogs age, HA concentration in joints drops, contributing to stiffness and pain. Researchers have pursued whether oral supplementation can actually reach and replenish the joint. The answer, increasingly, is yes.

A 2021 study evaluated dogs following cruciate repair surgery. After 10 weeks of oral HA, researchers measured a significant increase in HA concentration in synovial fluid and a decrease in oxidative stress markers — in the placebo group, HA actually declined.  PubMed ↗

A 2025 PMC study tracked dogs with naturally occurring osteoarthritis. Results showed clinical improvement in lameness and joint pain in nearly half of patients, with measurable reductions in systemic inflammation and oxidative stress — no adverse effects at any time point.  PMC ↗

Glucosamine and chondroitin are the most widely used canine joint supplements — and the research is the most debated. Some studies show real benefit; others show little to none. We believe you should know both sides.

On the positive side, a randomised double-blind trial found dogs consuming glucosamine/chondroitin showed statistically significant improvements in pain, weight-bearing, and OA severity by day 70 — results non-inferior to prescription carprofen at that point.  ScienceDirect ↗

However, a 2024 systematic review in the Journal of Small Animal Practice found a very marked non-effect of glucosamine-chondroitin, concluding evidence is insufficient to recommend it as primary pain management.  Wiley ↗  PMC ↗

UC-II is derived from chicken sternum cartilage and works differently from glucosamine — via oral tolerisation, it modulates the immune response to reduce cartilage breakdown rather than simply providing building blocks.

In a head-to-head study, UC-II demonstrated greater efficacy than glucosamine-hydrochloride and chondroitin-sulphate for managing OA signs in dogs.  Wiley ↗

A 2022 study in Translational Animal Science evaluated UC-II in Labrador Retrievers during exercise. It prevented increases in pro-inflammatory and cartilage degeneration biomarkers — suggesting it may be protective even before clinical OA develops.  PMC ↗

L-Carnitine is critical for transporting fatty acids into the mitochondria for energy production. Often overlooked in joint supplements — but the canine-specific evidence for muscle recovery and lean mass preservation is compelling and published in PubMed-indexed journals.

A controlled study in the Journal of Nutritional Science using Labrador Retrievers found L-carnitine produced higher lean muscle mass, improved recovery biomarkers, and lower oxidative stress during vigorous exercise. The carnitine group gained lean mass; the control group lost it.  PMC ↗

A follow-up study found L-carnitine significantly lowered the percentage of muscle degradation post-exercise in dogs — the first study of its kind in canine research.  PMC ↗

Omega-3 fatty acids are among the most consistently supported nutraceuticals in veterinary medicine. Mechanism is well understood: they reduce pro-inflammatory prostaglandins and cytokines that drive joint degradation.

The 2024 systematic review in the Journal of Small Animal Practice — the same study that found mixed evidence for glucosamine — found clear evidence of efficacy for omega-3 enriched diets and supplements in OA dogs, ranking them among the best-supported nutritional interventions available.  Wiley ↗

A separate randomised trial found marine fatty acid compounds produced significant improvements in gait force in dogs with hip OA after 4–6 weeks — results comparable to carprofen — while glucosamine in the same trial did not reach significance.  Frontiers ↗

Evidence at a Glance

Ingredient Evidence Key Benefit

Hyaluronic Acid ● Strong Joint lubrication, reduces inflammation biomarkers

UC-II Collagen ● Strong Reduces cartilage degradation; outperforms glucosamine

Omega-3 (EPA/DHA) ● Strong Anti-inflammatory; endorsed in systematic reviews

L-Carnitine ● Strong Lean muscle mass, recovery, oxidative stress reduction

Glucosamine / Chondroitin ● Mixed Cartilage support; results vary by study design

Most supplement brands only show you the studies that support their product. We don't think that's fair to you or your dog. The glucosamine evidence genuinely is mixed — some studies show benefit, some don't. That's why our formula doesn't rely on glucosamine alone.

We've built Joint Care Pro Max around the ingredients where canine-specific research is strongest: hyaluronic acid, UC-II collagen, omega-3 fatty acids, and L-carnitine. Every study linked above is publicly accessible on PubMed or the journal's website. We encourage you to read them.

Shop Joint Care Pro Max →

1. Serra Aguado CI et al. (2021). Oral HA in Dogs Following Tibial Tuberosity Advancement Surgery. Frontiers in Veterinary Science. pubmed.ncbi.nlm.nih.gov/33925642
2. Systemic Hyaluronic Acid Therapy in Dogs with OA. (2025). PMC. pmc.ncbi.nlm.nih.gov/articles/PMC12607540
3. Pye C et al. (2024). Non-pharmaceutical treatments of canine osteoarthritis. Journal of Small Animal Practice. doi.org/10.1111/jsap.13670
4. Varney JL et al. (2022). UC-II collagen in Labrador Retrievers. Translational Animal Science. pmc.ncbi.nlm.nih.gov/articles/PMC9290855
5. Bhathal A et al. (2017). Glucosamine and chondroitin in canines: A review. PMC. pmc.ncbi.nlm.nih.gov/articles/PMC5356289
6. Varney JL et al. (2017). L-carnitine for muscle recovery in Labrador Retrievers. Journal of Nutritional Science. pmc.ncbi.nlm.nih.gov/articles/PMC5465856
7. Varney JL et al. (2020). L-Carnitine metabolism and protein turnover in Labrador Retrievers. PMC. pmc.ncbi.nlm.nih.gov/articles/PMC7540169
8. Fritsch DA et al. (2023). Glucosamine, marine fatty acids and carprofen for dogs with hip OA. Frontiers in Veterinary Science. frontiersin.org/fvets.2023.1033188