The Volkihar Alchemy Bazaar a full service alchemists dream come true. It is heavily decorated with charts and diagrams of alchemic ingredients and recipes. It is heavily stocked with ingredients storage and books.
Morta is an expert alchemist trainer and vendor that runs this bazaar. Her hours of operation vary as she has many other jobs within the castle. She carries almost every alchemic related item Skyrim has to offer and more.