No Bite Nail Polish: This nail polish has a uniquely bitter taste. Nail biting treatment for adults Effective Immediately: Helps stop nail biting habits. Use the file to shape nails as they grow back Promotes Nail Growth: Bitter formulation helps prevent nail biting, which encourages nail growth Powerful Deterrent: This bitter nail polish helps break the habit of nail biting problems Simple Easy Nail Care: Use as a top coat or base coat and as a nail biting prevention layer