They were traveling vendors selling elixirs and potions to improve the health. Medicinal alchemy then sought to isolate quintessence and incorporate it within medicine and elixirs. Health elixirs and food consumables will restore health, while mana elixirs replenish mana. At this time, Daoist alchemists began to record the often fatal side effects of elixirs. He prescribed elixirs of laxatives and purgatives, as well as heat, massage, and exercise. They live around Death Mountain, which Link must use heat-resistant armor or elixirs to enter. The player can regain lost health via the use of found elixirs. Many texts from the Six dynasties period specifically warned about the toxicity of elixirs. Many individuals died or had psychological difficulties after taking certain elixirs. In Hinduism, honey ("Madhu") is one of the five elixirs of life ("Panchamrita"). He also began travelling to famous mountains in search of medical plants and elixirs. He often makes elixirs to help Smurfs who get into trouble. There is a famous story about animal testing of elixirs by Wei Boyang.