Quality is less about hype and more about restraint: clear labeling, realistic claims, and manufacturing practices that reduce surprises. Independent testing matters because some vitamin-mineral supplements don’t reliably meet minimum recommendations, and contaminant risk has been raised in certain products (RVA, 2021). For senior cats, “more” is rarely the right philosophy.
Look for products that specify forms, amounts, and intended use, and that avoid piling on overlapping ingredients across multiple chews, oils, and powders. If you’re already using a joint product, a skin-and-coat oil, and a urinary diet, a simpler senior cat multivitamin is often the safer, more coherent choice.