Bob Martin has created a simple and convenient way to treat and prevent flea infestation on your dog or puppy with Puppy Flea & Tick Spot On that is effective for 4 weeks. Each treatment of this easy to apply odourless solution will ensure that fleas and ticks are killed on contact before they bite your pet breaking the flea lifecycle. Suitable for use on small dogs and puppies from 2 weeks of age this is particularly suitable for the treatment of younger dogs.