These calming chews are seriously helpful if you have a dog that gets anxious about pretty much anything - thunderstorms, car rides, vet visits, you name it. You get 150 chews in the container, which is a really good amount that will last you a while. The beef flavor is apparently irresistible to most dogs - mine actually thinks they're regular treats and gets excited when I bring them out. They start working within about 30-45 minutes, which is perfect for those situations where you know stress is coming (like when a storm is forecast or you have a car trip planned). The effects can last up to 12 hours, which covers most anxiety-inducing situations completely. The ingredient list is impressive - hemp seed oil, hemp seed powder, L-theanine from green tea, L-tryptophan, vitamin B9, passion flower, chamomile, and melatonin. It's a natural approach that doesn't involve prescription medications. I've used them during fireworks season and the difference is noticeable - my dog goes from pacing and panting to actually settling down and relaxing. They're also great for separation anxiety when you need to leave the house. The 5-year assurance gives you confidence in the product quality, and the customer service is apparently really responsive if you have any issues. Seriously, if you have an anxious pup and want to avoid prescription meds, these calming chews provide a natural solution that actually works. They're one of those products that can genuinely improve your dog's quality of life during stressful situations.