PetSupplementsIndexScience-Backed Rankings

B Vitamins

Products Containing B Vitamins

Top-rated supplements featuring this ingredient, ranked by our PSI+ score.

Nekton-Rep Vitamin Supplement for Reptiles pet supplement

Nekton-Rep Vitamin Supplement for Reptiles

Nekton

Fluker's Repta-Vitamin with Beta Carotene pet supplement

Fluker's Repta-Vitamin with Beta Carotene

Fluker's

VetriScience Renal Essentials for Dogs pet supplement

VetriScience Renal Essentials for Dogs

VetriScience

PSI+ 48.0$24.99

Healthy Kidney Inc. Kidney Restore for Cats pet supplement

Healthy Kidney Inc. Kidney Restore for Cats

Healthy Kidney Inc.

Rx Vitamins Amino B-Plex for Cats pet supplement

Rx Vitamins Amino B-Plex for Cats

Rx Vitamins

PSI+ 44.0$21.95

PetSupplementsIndex.com — Science-Backed Pet Supplement Rankings

PetSupplementsIndex.com provides independent, science-backed rankings for over 600 pet supplements across 8 categories: Joint & Hip, Digestive Health, Skin & Coat, Multivitamin, Calming & Anxiety, Heart Health, Immune Support, and Senior Pet.

Every product is scored using our proprietary PSI+ system that evaluates ingredient adequacy, dose transparency, third-party testing, NASC certification, and real customer feedback.