I've found that extreme states of exhaustion often lead to lucids. Couple this exhaustion with a little coffee before you lie down and you have a recipe for a nuclear LD. I've also used b6, melatonin and Kava in combination with varied success. Never tried Chalea Z, I'd like to. The best LDs I've had have been because I've focused on having them and being prepared for them. What's more, if you DO take something to induce, and if you dont get a lucid, you can rest assured that at least the dreams that you do get are going to be insanely detailed and realistic. Sometimes LDs ruin a dream that could have rocked...like waking up because you get too excited because everything is just too awesome to take in once you realize it's the dreamworld. Anyways...I wouldn't tell people not to try using various natural substances to test the effect they could have on LDs. IMO it's unscientific not to cover all the bases...just stay within reason, have a plan, record the results, and best of luck!