Our pet mouth repair gel contains oat extract, citric acid. It can effectively improve the oral health of pets. Its application is simple: gently rotate the bottom of the gel pen to squeeze out the right amount of repair gel, apply the gel evenly to your pet's gums, teeth or damaged oral area with the tip of the gel pen to ensure complete coverage, let your pet naturally close its mouth and wait for the gel to be absorbed. And the formula is mild, suitable for sensitive pets.