Borax kills fleas by trapping them in the material. It does this in two ways: it decreases moisture in the environment and it acts as an abrasive on the flea’s exoskeletal structure. This results in the flea’s dehydration and death. However, the process may take several days. Moreover, Borax is toxic to humans and pets, and it is best to avoid using it around kids.
The active ingredient in borax, or boric acid, is found in many household products. While it is associated with soap making, it is also used in floor cleaners, rust removers, and as a natural herbicide. However, you should use safety precautions when using it to kill fleas. This includes wearing gloves, a face mask, and diluting it to a safe concentration. This way, you can be sure that you are not poisoning your family or pets.
Using borax can be effective in the case of homes without pets, but it is not recommended to be used for treating fleas in homes with children or pets. Borax works slowly and is more effective if you vacuum thoroughly and apply it to affected areas. While borax does not kill adult fleas, it can kill larvae and eggs. This treatment can be effective in reducing the number of fleas in a household, but it will not kill pupae and larvae.
If you are concerned about the safety of borax for your pet, consult a veterinarian before trying it. The natural mineral can be toxic to dogs and should not be applied directly to the skin or eyes. You should also thoroughly vacuum up the product after use to prevent a risk of eye or skin irritation.