Keystone Research & Pharmaceutical has spent years developing innovative products for use in the fingernail and pharmaceutical industries. Keystone Cosmetics (KRP) delivers its products and services to wholesalers in the nail industry. Keystone Industries, also known as Mycone Dental supply Co. Inc, is a privately held group of dental, cosmetic and medical device manufacturing and distribution subsidiaries. Keystone Research & Pharmaceutical (KRP) is the manufacturing division responsible for production of our cosmetic, dental, hearing aid and specialty polymer products.