Better to choose the OSK Japanese Green tea than Lipton.

First look at the ingredients. Second look at the colour of the tea. A green tea is called green tea because it's suppose to be green. Not yellow/brown. I believed lipton add some other stuff other than green tea. I don't like anything which have addition other than pure green tea.

Decaffeinated green tea = processed. Green tea caffeine is not much compare to coffee. Very little unless you are allergic to caffeine.
Natural flavor, soy lecithin for what? A tea doesn't need any natural flavouring. AFAIK, soy lecithin is to increase those fat soluble stuff (usually mixed with a based of oil safllow flower oil/olive oil).

Another reason I don't trust lipton brand is because it's held by big company (Unilever). Big companies does not have good record to keep consumer health as their priority.

Again AFAIK, for OSK, they always have label in English about what it content ; ie just plain Japanese green tea.

I don't trust china green tea because china does not have good standard when it come to food safety. So that leaves me with only Japanese/Korean green tea. Boh/Lipton does not have expertise when it comes to green tea. So better to stick with the original people who make green tea.