A natural option to alleviate itch caused by environmental and occasional allergies and support normal immune system response. Kyosenex Prime is a patent pending formulation containing extracted proteins derived from the thymus gland mixed with certified 1st milk bovine colostrum to support normal immune system response and skin health. In the past 10 years, leading veterinarians across the country have been using Kyosenex Prime and are very happy with how well this product works. Most owners see satisfactory results within the first two bottles or 3-6 weeks. Additional maintenance is recommended at 1-2 full droppers, two times per week. Typically, this is a total of 4 bottles of Kyosenex Prime per year.