Sentinel Care BrightLife is a blend of proprietary technologies, trace mineral amino acid complexes, vitamin E, amino acids, and biotin to support the horse's immune system, especially during Nutritional and Environmental STRESS! Nutritional stress can come from the demands of growth, performance, reproduction, and aging. It can also come from poor feed quality, feed management, or changes in feed. Environmental stress can result from extreme heat, insects, transportation, and changes in routine or surroundings. When horses experience stress, the immune system may become compromised resulting in decreased health, performance, and overall appearance. Intakes may also become depressed and nutrient requirements may increase, leaving horses in a deficient situation. Feeding the exclusive blend of nutritional additives found in Sentinel Care BrightLife may help minimize the negative effects of the horse's immune response to stress and get your horses back on track.