Originally Answered: What is the difference between Lipston's "100% natural green tea" and "pure green tea"?
"100% natural" generally means that a product doesn't contain artificial flavorings or synthetic food additives, and "Pure green tea" means that the product is pure tea, not flavored tea. Pure green tea is a stricter classification, because you can have a flavored tea that is flavored with natural flavors or whole ingredients. Lipton does make flavored green teas, so you may have been looking at a product...but it could have just been different packaging.
Neither of these statements means that the product is organic. Both of them may have been produced with the use of synthetic pesticides or fertilizers--unfortunately, these are both fairly widely used in the tea industry. Organic certified teas, and traditionally-processed artisan teas are grown without the use of synthetic pesticides or fertilizers. To guarantee that it's organic, you need to look for the USDA Organic logo or other certifying logo. I run RateTea, and we have a page explaining all about organic tea:
I wouldn't worry too much about organic certification though. But I will say one thing; Lipton green tea is not the best green tea out there, even in the supermarket. I personally think Lipton does a better job of their black teas than green teas; they're historically a British tea company and I think British tea culture is more about black tea.
If you want to buy green tea, I really recommend buying from a Chinese or Japanese company. Some brands that I like include Yamamotoyama (Japanese), Foojoy (Chinese), and Ten Ren (Taiwanese). Of these I think Ten Ren is the best, but hardest to find in supermarkets or stores.
You can also buy green tea online or in specialty tea stores, although a few supermarkets (Wegmans is the best, IMHO) also have loose-leaf tea. I personally think that's the best option. You can get cheap, organic certified, loose-leaf green teas from Upton Tea Imports. There's also a company, TeaVivre, that direct ships from China--$15 shipping, but their teas are AMAZINGLY fresh. You will probably need to buy a strainer or tea filter or tea infuser if you want to brew loose-leaf teas, but believe, it's worth it. The tea is so much fresher and loose-leaf tea is cheaper per cup anyway.
I recommend reading this page, also on RateTea, which has general info about green tea, as well as specific reviews, if you're looking to get into it:
I hope this more-than-answers your questions!