Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 8 Months Protection

Customers find the flea and tick collar effective, with one reporting it worked within 24 hours, and many noting it kills fleas for 6-8 months. The collar lasts for full 8 months of use and has no side effects for pets. While some customers say their dogs have never had fleas or ticks, others report finding them on their dogs. Customers disagree on the collar’s value for money, with some finding it well worth the price while others consider it expensive. Customers disagree on the collar’s impact on health, with some saying their dogs tolerate it well while others warn it can be dangerous to certain dogs.