I only purchased what I needed at the beginning. So send in your ATI test, get the results and go by the recommended shopping list and go from there. You can buy the Iodide, potassium, calcium, strontium ahead of time and mix them yourself. I only purchased what I needed from Andre (minus the brightwell stuff) and it was less than $300. Don't buy what you don't need. The dailies are needed, manganese, chromium, cobalt, iron, vanadium, iodide (and rubidium if you want?) Zinc and Nickel will last you a very long time.