1. cat
  2. cat food
  3. cat mate
  4. cat md
  5. cat sip
  6. cat stop
  7. catit
  8. catmouse
  9. catnip & grass
  10. catswell

Save up to 25%

on your favorite pet essentials in stores & online

Save $5 on $50, $10 on $75, $15 on $100

online only now through 10/5 ~ see details

Free Shipping!

on orders over $49 ~ exclusions apply

GNC Pets™

Vitamins & Supplements

Because your pet's health is as important as your own

Why GNC Pets?

GNC has been the leader in human supplementation for 75 years. When it comes to supplements, GNC's quality standards are unparalleled. The GNC Pets brand for PetSmart was scientifically formulated, and quality was tested using the same cutting-edge methods that GNC uses for it most advanced human supplements.

Hip & Joint Health

Hip & Joint Health

Need help with mobility?



Find a supplement

Multivitamins

Multivitamins

Need general health & immunity support?


Find a supplement

Skin & Coat Health

Skin & Coat Health

Need advanced support for a glossy & silky coat?


Find a supplement

Milk Replacers

Milk Replacers

Need wholesome nourishment for puppies & kittens?

Find a supplement

Specialty Supplements

Specialty Supplements

Need help with hairballs calming, digestion and more?


Find a supplement

Dog Essentials

Dog Essentials

Need premium pet care products designed for health needs like chapped noses, itching and sunburns?

Learn More

Shampoo

Dog Shampoo

Need a vitamin-enriched solution for your dog's delicate skin and coat?



Learn More

Treats

Dog Treats

Need a healthy, bite-size snack that doubles as a treat?


Learn More

Naturals

Dog Naturals

Need a great supplement for pets with food sensitivities?


Learn More

PetSmart is the exclusive pet retailer for GNC Pets. GNC Gold Card discount not valid on purchase of GNC Pet items.