About Petmaxxing

Petmaxxing is an independent editorial site that reviews and ranks pet supplements based on evidence — not marketing claims.

Our methodology

We evaluate every supplement across six metrics: ingredient quality, dosage accuracy, bioavailability, third-party testing, value per dose, and clinical evidence. We buy products ourselves, read the labels, check the research, and publish what we find — including when products don't work.

No brand pays for placement. No score is influenced by affiliate commissions. We publish honest assessments including products we'd skip.

Affiliate disclosure

Petmaxxing is reader-supported. Some links on this site are affiliate links — if you purchase through them, we may earn a commission at no extra cost to you. This never influences our rankings or recommendations. We recommend products we'd give our own pets.

Not veterinary advice

Petmaxxing provides educational content about pet supplements and nutrition. It is not veterinary advice. Always consult a qualified veterinarian before starting any new supplement regimen for your pet.

Why we built this

The pet supplement market is flooded with products that rely on vague wellness language, underdosed ingredients, and celebrity endorsements rather than peer-reviewed evidence. We got tired of seeing owners spend $50/month on supplements with no clinical backing — while proven ingredients like EPA/DHA, glucosamine, and specific probiotic strains sat underused or underdosed on store shelves.

Petmaxxing started as a side project to answer one question: what would we actually give our own dogs? That meant reading primary research, checking label claims against clinical dosing thresholds, and evaluating whether third-party testing certificates were real. The result is the scoring system and guides you see on this site.

Our free tools

Beyond written guides, we build free interactive tools: a dosage calculator that gives weight-adjusted supplement dosages, a supplement interaction checker covering 40 supplements and 95+ documented interactions, and a breed & symptom quiz that recommends a supplement stack based on your dog's age, size, and health concerns. All are free and require no account.

Our network

Petmaxxing is part of a broader evidence-based health publishing network. Our sister sites apply the same rigorous approach to human health and finances: Health Britannica covers evidence-based supplements for people (including foundation stacks, omega-3 guides, and probiotics for gut health). Nesyona reviews the best AI health and wellness apps for tracking supplement routines and health patterns. GrantProbe helps families find financial assistance programs to offset pet care costs.