The age when a puppy can wear a flea collar depends on the specific brand of flea collar and every owner needs to read the labels on the box to ensure that the flea collar is truly age appropriate. It is also important to check the size requirements for the flea collar.
Flea collars have chemicals in them that interact with the skin of the dog in order to provide protection. These chemicals are input into the collar based on the size and weight of the dog. When purchasing a flea collar, owners need to look at not only the age requirements for the collar but also the size and weight requirements. Owners should also make sure that the dog cannot chew on the collar because of the chemicals.