Senilife is a dietary supplement that helps maintain normal brain function in elderly pets. Its blend of natural ingredients has been tested to show clinical signs of improvement after 7 days of treatment. 50% of pets are less lethargic, have more interest in playing, follow commands more readily, and 70% show improvement in night time moaning. Senilife is safe for use throughout a dog or cat's entire lifetime and may be most effective if given from an early age. Phosphatidylserine: Naturally occurring membrane phospholipid. Provides neuronal protection Maintains neuron function in the aging brain Ginkgo Biloba: Antioxidant activity Improved cerebral blood circulation Directions for Use: To be given orally once daily for 1-2 months (Consult your veterinarian for continued administration after this time) Dogs: Less than 30lbs. - 1 capsule 30lbs. - 50lbs. - 2 capsules 51lbs. and greater - 3 capsules Cats: 1 capsule by Ceva Animal Health, Inc.