petlab co. senior dog vitamin vitality chew | rich in vital vitamins & minerals with antioxidant support | multivitamin for older dogs | vitamin a, vitamin b12, vitamin d3, vitamin e, biotin petlab co. our senior dog multivitamin, the senior vitality chew, has been designed to provide your dog with vitamins and minerals that they need to age comfortably and healthy. as your dog grows older, they may struggle to ascertain all the nutrients they need from their normal dog food alone - this means they will need extra support from you to be as healthy and happy as they can be. if they are unable to get all the nutrients that they need from their diet then sadly they may have an increased risk of health difficulties. we have therefore made sure that our senior dog vitamin rich chew is packed full of the most important nutrients so that, when given daily and consistently, it is able to support physical and mental wellbeing. another benefit of our senior vitality vitamin chew is that it is able to provide antioxidant support in the form of bioflavonoids. this is owing to the excellent ingredient profile, including; vitamin b12, which may help to support a healthy nervous system as well as the formation of blood cells. vitamin d3, which may help regulate calcium and phosphorus - aiding in bone support and muscle control. vitamin a, known as the famous carrot vitamin, is responsible for promoting proper vision and eye health. vitamin e, an antioxidant that may help to defend against harmful irritants as well as supporting immunity and a healthy skin and coat. iron, which may help to oxygenate red blood cells whilst regulating energy. finally we have biotin, which may support the nervous system