Fastest way to level Alchemy? - The Elder Scrolls V: Skyrim
Do you have Hearthfire? Build a house, get a garden and green house. In the garden plant 3 creep clusters, 3 scaly(the mushrooms you find on dead silver birch threes outside Riften) and 5 Mora(the orangs mushrooms you see on dead trees) Plant more of these in the greenhouse. Put on any Fortify Alchemy gear and mix these three ingredients.