I am pet dad for 2 Dogs, One Rottweiler and one Pitbull, Rottie is in the weight range of 45-50 KG and Pit is at 38-40 KG. due to a lot of cats in the neighborhood my dogs got Flea infestation and i tried almost all the remedies available but the cure was effective for a week or 2. post and exhaustive search online i got this product which brought everything under control in 24-48 hours, itching was gone completely in a day and the hair-loss stopped in 2-3 days, now they both are back to normal and happy. i would highly recommend this product however please ensue your pets weight before ordering this thanks to pet cartel