Hollo's Forest Potion Shop

is a location in. It is located inside a cave within the main area of Forest Haven. Hollo heals the Koroks using the ingredients found in the forest and runs the shop; he is one of two Koroks to remain in Forest Haven after the Korok Ceremony, the other being Makar. If Link gives him four Boko Baba Seeds, then Hollo will concoct a Blue Potion from the spoils.

Trivia

 * During the cutscene in which Hollo creates the potion, he cries "Onjalla, manjalla, CHOWAY!", which could be a specific spell he uses to combine the ingredients or unleash the magic contained in the seeds.
 * There is a poster at the back of Hollo's shop which reads (clockwise from the top left) "Bokobaba Potion," "Bokobaba Seed," "Defeat Bokobaba," "Baba Bud" and "Bokobaba." They appear to be instructions on how to retrieve the Boko Baba Seeds, as they are accompanied by a diagram of the plant splitting into both a Baba Bud and a Boko Baba Seed.
 * Despite Hollo claiming not to have Boko Baba Seeds, there appears to be several of them hanging from the walls throughout the shop. They may simply be decorative likenesses, however.