Alchemist/Guides

All the way up

 * Gather flowers (see Flowers & Plants for locations)

Lv.1-9
If you're no higher than character level 15 and profession level 5, you can repeat the quest Manufacture for Poss'Ybel Nhin in the side room of the Incarnam Inn (3, 3). Each time, give her a Mini Healing Potion, whether you crafted it personally or not, to receive 75 job experience. 11 repetitions of the quest, thus 11 Mini Healing Potions, are sufficient to get you from profession level 1 to 6.
 * Unassisted crafting
 * Mini Healing Potion (1 Water, 3 Flax Flower)
 * Baker's Yeast (1 Magical Cure, 1 Water)
 * If you are a farmer
 * Bontarian Intercity-Express Potion (1 Rice, 1 Pandaburg Flask)
 * Brakmarian Intercity-Express Potion (1 Rice, 1 Pandapils Flask)
 * Assisted crafting
 * Recall Potions (1 Five-Leaf Clover, 1 Water)
 * Quest repetition

Lv.10-39

 * Most effective
 * Superior Mini Healing Potion (1 Water, 2 Hemp Flower, 2 Flax Flower)

Lv.40-59

 * Health Flask (1 Water, 1 Slender Tube, 2 Freyesque Orchid, 2 Wild Mint Leaf)
 * Alternatives
 * Ghetto Raid Potion if you're going to make Phoenix Blood later on
 * Level 50+: Superior Health Flask (1 Water, 1 Slender Tube, 4 Five-Leaf Clover, 2 Edelweiss)
 * If you're on the cheap side crafting Baker's Yeast (1 Magical Cure, 1 Water) will still work.

Lv.60-79

 * Continue with 3-slot and 4-slot recipes
 * Fairy Water (1 Big Phial, 8 Flax Flower, 8 Hemp Flower, 4 Freyesque Orchid, 2 Edelweiss, 1 Water)
 * Alternative
 * Unikron Blood

Lv.80-100

 * Continue with Health Flask or Fairy Water
 * Alternative
 * Phoenix Blood (1 Potion of Old Age, 1 Superior Mini Healing Potion, 1 Ghetto Raid Potion, 1 Fairy Water, 1 Five-Leaf Clover, 1 Pandkin Seed, 1 Rice)