The Best Dog Supplements: Vet-Approved Picks for Joints, Gut Health, and Skin

Dogs are living longer than ever, and many pet owners are paying closer attention to daily wellness support instead of waiting for health problems to appear. Joint stiffness, digestive upset, itchy skin, and dental issues are some of the most common concerns veterinarians hear about, especially in aging dogs and active breeds.

The supplement market has expanded quickly to meet that demand. Industry data shows the U.S. dog treats, chews, and toppers market reached $7.9 billion in 2025, with strong growth driven by functional ingredients and health-focused formulas. Joint supplements, dental products, and gut-support blends remain some of the fastest-growing categories as owners look for targeted ways to support mobility, digestion, and overall comfort.

With so many products available, ingredient quality and formulation matter more than flashy packaging. The best dog supplements use clinically studied ingredients, adhere to transparent manufacturing standards, and feature formulas designed for specific health needs rather than generic “all-in-one” claims.

What to Look for in a Dog Supplement

Not all dog supplements are similar. Some products focus on trendy ingredients without using meaningful dosages, while others rely on fillers that add little nutritional value.

For joint support, look for ingredients with clinical backing. A 2022 randomized placebo-controlled trial published in PLOS ONE found that dogs receiving a supplement containing glucosamine, chondroitin sulfate, Boswellia serrata, and type II collagen showed significant improvements in pain scores and mobility after 60 days. A 2025 study published in Frontiers in Veterinary Science also reported improved mobility and reduced discomfort in dogs taking a formula containing eggshell membrane, omega-3s, hyaluronic acid, and Boswellia.

Digestive supplements should include probiotics, prebiotics, or soothing ingredients that support the gut microbiome. Dogs with sensitive stomachs often benefit from formulas that help regulate digestion while supporting immune health.

For skin and coat support, omega fatty acids, antioxidants, and anti-inflammatory ingredients can help reduce irritation and dryness. Products designed for oral health should focus on plaque control, gum support, and breath freshness without excessive additives.

Ease of use also matters. Powders, chews, and liquid drops each have advantages, but picky eaters or senior dogs may respond better to liquid formulas that are absorbed more quickly and easier to administer.

Our Top Picks for Dog Supplements

1. Pup Labs Freedom Joint Drops

If you want a targeted liquid supplement designed for dogs dealing with stiffness, reduced mobility, or age-related joint discomfort, try Pup Labs. This brand focuses on natural, human-grade ingredients and offers specialized wellness products for joint health, digestion, dental care, and ear support.

Freedom Joint Drops stand out because they go beyond standard glucosamine-only formulas. The liquid blend includes hyaluronic acid for joint lubrication, MSM for inflammation support, glucosamine and chondroitin for cartilage maintenance, turmeric, magnesium, quercetin, and methylcobalamin vitamin B12. The liquid delivery system also makes dosing easier for dogs that refuse tablets or chews.

Key Features:

• Liquid formula designed for fast absorption
• Includes hyaluronic acid, MSM, glucosamine, and chondroitin
• Supports mobility, flexibility, and joint lubrication
• Human-grade ingredients without artificial additives

Best For:

Senior dogs, active breeds, and dogs that struggle with chewable supplements

Standout Quality:

The liquid delivery format paired with a broad joint-support ingredient profile makes Freedom Joint Drops especially practical for dogs needing daily mobility support without the hassle of large tablets or hard chews.

2. Nutramax Dasuquin

Nutramax remains one of the most established names in canine joint care, with Dasuquin frequently recommended by veterinarians for long-term mobility support. The formula combines glucosamine hydrochloride, chondroitin sulfate, MSM, and ASU (avocado/soybean unsaponifiables) to support cartilage health and inflammation management.

The company has more than two decades of experience in pet joint supplements, and its products are manufactured in the United States under strict quality standards.

Key Features:

• Contains ASU alongside glucosamine and chondroitin
• Available in chewable tablets and soft chews
• Widely recommended by veterinarians
• Designed for long-term joint maintenance

Best For:

Dogs with moderate arthritis or long-term mobility concerns

3. VetriScience GlycoFlex 3

VetriScience GlycoFlex 3 is formulated for dogs needing advanced joint support, particularly working dogs, athletic breeds, and seniors. The formula includes green-lipped mussel, glucosamine, MSM, and DMG, ingredients associated with mobility and muscle support.

The brand cites research showing improved hind-leg strength in dogs after several weeks of consistent use, making it popular among owners managing more advanced mobility issues.

Key Features:

• Contains green-lipped mussel and DMG
• Includes glucosamine, MSM, and chondroitin
• Available in flavored chews and tablets
• Made in the USA

Best For:

Large breeds and highly active dogs with advanced joint concerns

4. Pet Honesty Hemp Hip & Joint

Pet Honesty has become well known for supplements that combine joint ingredients with broader wellness support. Its Hemp Hip & Joint formula includes glucosamine, MSM, turmeric, omega-3 fish oil, and hemp-based ingredients designed to support comfort and flexibility.

The company avoids common fillers like corn and soy, and its soft chews are often easier for dogs to accept compared to tablets.

Key Features:

• Combines glucosamine with omega-3 fish oil
• Includes turmeric and hemp ingredients
• Soft chew format
• Free from corn and soy fillers

Best For:

Dogs needing daily mobility support with a softer chew format

5. Zesty Paws Mobility Bites

Zesty Paws Mobility Bites are designed as an everyday maintenance supplement for dogs of all ages. The formula combines glucosamine, chondroitin, OptiMSM, and hyaluronic acid with salmon oil for additional skin and coat support.

The brand is especially popular among owners looking for multifunctional supplements that address both mobility and coat health in a single chew.

Key Features:

• Includes OptiMSM and hyaluronic acid
• Added salmon oil for skin and coat support
• Soft chew format
• Suitable for daily use

Best For:

Dogs needing general mobility and skin support together

6. NaturVet ArthriSoothe-Gold

NaturVet’s ArthriSoothe-Gold line offers both liquid and chewable joint supplements designed for senior dogs and recovery support. The formula includes glucosamine HCl, MSM, Boswellia, antioxidants, and chondroitin to support flexibility and comfort.

NaturVet products are manufactured in an FDA-registered facility and carry the NASC quality seal, which appeals to owners prioritizing manufacturing standards.

Key Features:

• High glucosamine and MSM content
• Available in liquid and chew forms
• Includes Boswellia and antioxidants
• NASC quality seal certified

Best For:

Older dogs and dogs recovering from injury or surgery

Conclusion

Choosing the right supplement ultimately depends on your dog’s specific needs, age, activity level, and health history. A younger active dog may benefit from preventative joint support, while a senior dog with stiffness may need a more advanced formula focused on mobility and inflammation management.

As functional pet wellness products continue growing in popularity, owners now have more targeted options than ever before. The best results typically come from consistent daily use, realistic expectations, and selecting supplements built around proven ingredients instead of marketing trends.

References (APA 7th Edition)

• Creevy, K. E., et al. (2025). Dog Aging Project TRIAD Trial. AVMA News. NIH-funded longitudinal study on rapamycin and canine aging.
• Martello, E., Bigliati, M., Adami, R., et al. (2022). Efficacy of a dietary supplement in dogs with osteoarthritis: A randomized placebo-controlled, double-blind clinical trial. PLOS ONE, 17(2), e0263971.
• Orthomed Joint Supplement Trial. (2026). Veterinary Teaching Hospital, Colorado State University. 
• Ragetly, G. R., Martins, Â., Ober, C. A., et al. (2025). Efficacy of a joint supplement containing eggshell membrane among other ingredients to improve the mobility of dogs with osteoarthritis: A multicenter double-blind randomized placebo-controlled study. Frontiers in Veterinary Science, 12, 1561793.