Nerovana’s Pro-Vital Deer Antler Velvet comes from the growing bone and cartilage that develops into deer antlers. Deer Antler Velvet has also been used to boost strength and endurance for centuries, it is said to improve the way the immune system works, counter the effects of stress, and shorten illness recovery. It has been used for treatment of high cholesterol, high blood pressure, migraines, muscle aches and pains, asthma, indigestion, osteoporosis, liver and kidney disorders and more.