The Juice Shoppe, located in Autumnal Avenue in Lumiose City, is a place where you can get various Berry Juices which can affect your Pokémon in various ways. On the left is a counter where the man will sell many pre-prepared juices. He will sell one per day so be sure to choose wisely. The selection changes each day. These juices range from increasing happiness, Effort Values and finally increase your Pokémon's level. The juices he offers vary in strength so you'll need to be sure to track the progess if you're purchasing one of the juices that gives you Effort Values. The values you get are dependant upon the price of the product. For the stat boosting juices, for example, if the product is 400, it'll boost by +4, 1400 will boost by +14. This boost goes up to a price of 3200 which gives a +32.