FRONTLINE Tri-Act Flea and Tick Treatment is a triple action spot-on solution to provide long-lasting protection against flying insects, fleas and ticks. It helps to keep your dog happy and healthy by working against a range of common UK parasites that can transmit disease or cause irritation to your dog.

FRONTLINE Tri-Act begins to work in just 5 mins, and after killing fleas and ticks within 6 hours, will remain effective for up to 4 weeks to repel new fleas and ticks. It will also prevent flea infestation in your home by killing fleas before they have a chance to lay eggs.