Proflax Plaque Patrol is a 100% natural, ready-blended concentrated herbal powder formula for dogs. It contains multiple ingredients - not just seaweed - which will address any existing oral health issues plus keep teeth clean and breath fresh thereafter. 
Composition (per 3.4mg): Seaweed 1624mg, Calendula 290mg, Turmeric 290mg, Thyme 232mg, Decaffeinated green tea 232mg, Parsley 232mg. 
Not recommended for pregnant/nursing dogs or puppies under the age of 8 weeks old.