Vet-formulated by Dr. Karen BeckerThe first probiotic built for dogs, not borrowed from humans.
Three microbial ecosystems — wolf-derived, canine, and soil-based strains — for a resilient gut your dog was born to have.
*Coupon code is automatically applied at checkout. One-time use only.
Human strains don't survive a dog's gut. These do.
Most pet probiotics repurpose human bacteria poorly adapted to the canine gut. Primitive Probiotics uses species-aligned strains dogs evolved with.
Wolf-derived strains
Actively assists the liver in breaking down lipid-soluble environmental chemicals into water-soluble compounds for safe elimination.
Species-specific strains
From healthy domestic dogs — highly colonizable support for digestion, immunity, and stress tolerance.
Resilient spore-formers
Bacillus strains resist heat, stomach acid, and antibiotics while modulating inflammation.
From firmer stool to more energy.
24–48 hrs
Firmer stool, less gas
Noticeably firmer stool with reduced gas and bloating.
1–2 weeks
Calmer, happier dog
Calmer mood, reduced itching, and a better appetite.
4+ weeks
Stronger from within
Stronger immunity, more energy, and improved sleep.
"Give your dog the microbiome they were born to have — designed for the canine gut, not repurposed from human formulas."
*Coupon code is automatically applied at checkout. One-time use only.
