We have a lovely big patio area that leads onto an artificial turf area that our two staffy girls love to use as their toilet area. Fair to say the area is smelly and we refrain from using and inviting friends to sit outside. We have tried home remedies and other products but nothing worked. Now we found petLab and after just one dosage you could smell the immediate difference the products have made. Even our daughter came for dinner and immediately noticed there was no smell. We can highly recommend the bundle and you will notice the difference immediately. The how to use video on YouTube was also helpful and being a heavy soiled area we followed the instructions. We highly recommend giving PetLab a chance you won't regret it.