Plaque Powder 150g CONTAINS: Pure Ascopyllum Nodosum. No additives Incorporating a seaweed supplement into your pet's nightly meal can naturally help reduce plaque buildup and keep their teeth clean, while also freshening their breath. The seaweed contains Ascophyllum nodosum, a type of kelp with properties that promote oral hygiene. Feed once per day: Up to 5kg - 1/2 tsp 5-15kg  - 1 tsp 16-25 - 2tsp 25+ 2.5tsp CONTENTS PER 100g all details on labels