Pet supplements, backed by science.
Pet supplements support specific health needs that diet alone may not fully cover — hip and joint mobility in aging dogs, skin and coat condition in pets with allergies, digestive balance after illness, and calming support for anxious pets. PetMeds carries 10 vet-recommended supplements from NASC-certified brands like Cosequin, Dasuquin, FortiFlora, and Welactin. Every supplement is reviewed by a licensed PharmD for drug-supplement interactions. Save 15% with AutoShip.
Every supplement checked for drug interactions
Reviewed by Dr. Sarah Chen, PharmD- NASC Certified
- Vet Recommended
- PharmD Reviewed
- Free Ship $49+
- 30-Day Returns
- 30 Years Trusted
Do pets really need supplements?
Healthy pets on a complete and balanced diet may not need supplements. But supplements can support specific needs — hip and joint health in aging dogs, skin and coat in pets with allergies, digestive health after illness, and calming support for anxious pets. Always talk to your veterinarian before starting any supplement.
How do I find the right supplement for my pet?
Answer three questions about your pet — species, primary concern, and current medications — and the PetMeds supplement finder will match you to the products used most commonly for that concern, ranked by vet preference and value.
Step 1 of 3 — What kind of pet?
Step 2 of 3 — What's the main concern?
Step 3 of 3 — Any of these apply?
Here's what we recommend.
Based on your pet's profile, these supplements match best.
What kinds of pet supplements does PetMeds carry?
PetMeds carries supplements across four main categories: hip and joint support, skin and coat health, digestive and probiotic formulas, and calming and general wellness. Every product is vet-recommended and sourced from NASC-certified manufacturers.
What supplements does PetMeds carry?
PetMeds carries 10 vet-recommended supplements including Cosequin, Dasuquin, Welactin, Proviable, Zylkene, VetriScience Multivitamin, Nordic Naturals Omega-3 Pet, Denamarin, and Purina FortiFlora. Filter by species, health concern, or formula type. AutoShip saves 15% on every recurring order.
Pet supplements
Showing 10 products
How do I compare popular pet supplements side by side?
Select up to four supplements to compare them side-by-side across species, health concern, form, rating, price, and AutoShip savings. The comparison matrix pulls from the same product data used across the site.
We'll pull up their form, benefits, species, and price in a side-by-side view.
What supplements work well together?
Most supplements work best as part of a stack — two or three products that complement each other without overlapping. Pick your pet's primary concern and the stack builder will recommend a combination that covers the need without redundant ingredients.
We'll match 2–3 supplements that complement each other — no overlap, no wasted spend.
What should I check before giving my pet a supplement?
Supplements are safe when chosen correctly and matched to your pet's needs. These five checks prevent the most common errors — and every PetMeds pharmacist is available at 1-800-738-6337 if you have a question.
Quick answers about pet supplements
Short, direct answers to the questions pet parents ask most.
- Do pets really need supplements?
- Healthy pets on a complete and balanced diet may not need supplements. But supplements can support specific needs — hip and joint health in aging dogs, skin and coat in pets with allergies, digestive health after illness, and calming support for anxious pets. Always talk to your veterinarian before starting any supplement.
- What's the best joint supplement for dogs?
- Cosequin and Dasuquin are the most vet-recommended joint supplements for dogs. Both contain glucosamine, chondroitin, and MSM. Dasuquin also includes avocado-soybean unsaponifiables (ASU) for additional joint support.
- How long until I see results from a supplement?
- Most supplements take 4–6 weeks to show noticeable effects, especially joint supplements. Probiotics may work faster (within days). Consistency is key — supplements work best when given daily on a regular schedule. AutoShip ensures the next dose arrives before you run out.
- Are pet supplements FDA-approved?
- Pet supplements are regulated as animal feed, not drugs, so they do not require FDA approval before sale. Look for brands that follow NASC (National Animal Supplement Council) quality standards — the NASC seal indicates third-party testing and quality control.
- Can I give my pet human supplements?
- No. Never give your pet human supplements without veterinary guidance. Dosages are very different, and some ingredients safe for humans (like xylitol or certain herbs) are toxic to pets.
- How do I know which supplement is right for my pet?
- Start with your pet's specific need — joint mobility, skin and coat, digestion, or calming. Then look for a vet-recommended brand with clear dosing instructions and a NASC seal. Your veterinarian can help match your pet's age, breed, and health profile to the right supplement.
- Are supplements safe to give alongside prescription medications?
- Not always. Some supplements can interfere with prescription medications. For example, high-dose omega-3 can interact with blood thinners. Always tell your veterinarian about every supplement your pet is taking before starting or stopping any prescription.
- How should I store pet supplements?
- Most supplements should be stored in a cool, dry place away from direct sunlight. Soft chews and liquids often need refrigeration after opening. Always check the label — storage requirements vary by product. Throw away expired supplements.
- Can cats take dog joint supplements?
- No — not without veterinary guidance. Some ingredients in dog joint supplements (including certain forms of glucosamine or additives) are not safe for cats. Look for supplements labeled for cats, or ask your vet about cat-specific formulas. Cosequin has a cat-specific version, and Dasuquin has a small-animal formula.
- How does AutoShip work for pet supplements?
- AutoShip is PetMeds' subscription program. Choose how often you want each supplement delivered — every 30, 60, or 90 days — and we handle the rest. You save 15% on every AutoShip order, shipping is free with no minimum, and you can skip, delay, change, or cancel any shipment from your account with one click.
What else should I know about pet supplements?
Supplements work best with consistency, not as quick fixes. Look for the NASC seal, match the formula to your pet's species, and tell your vet about every supplement your pet takes. AutoShip ensures the next dose arrives on schedule. Call 1-800-738-6337 to speak with a pharmacist about your pet.
What systems power PetMeds supplement orders?
Six core systems power every PetMeds supplement order: the OMS order pipeline, Ordergroove for AutoShip subscriptions, the Vet Portal for verification, Iterable for customer messaging, Salesforce Service Cloud for support, and the PIM for supplement data. Every order is checked by a licensed PharmD for drug-supplement interactions.