NAF In The Pink Senior Keep your old timers in tip top condition with NAF In The Pink Senior. Featuring a specially formulated supplement, In the Pink Senior has been designed to meet all the nutritional requirements of the older, active horse to keep them feeling in top condition. In The Pink Senior helps to balance the diet and supports a healthy digestive system to ensure your horse gets the most out of their meal times. In the Pink Senior provides everything they need to keep your horse happy and healthy with pre and probiotics, vitamins and minerals, naturally sourced antioxidant ingredients in order to remove excess free radicals and specially chosen herbs to provide a healthy gut and a youthful spark.