What are the ingredients?

I no longer have the bottle, as I have used it all. However, if you read all the information related to this oil, there is a topic called Ingredients of Product, it will give you all the information.

We love elemis japenese camellia body oil blend, but can you eat it?

I can't imagine why someone would want to eat it. I don't think I would use it as a lubricant, if that's where this question is headed. The bottle has warnings on it about getting it in your eyes, so there might well be some danger in ingesting it.

How much do you use for each area? How to apply?

You don’t need much, but definitely apply to damp skin for it to really absorb and do it’s job. Same goes for any moisturizer like body cream, body butter, etc. Always apply to damp skin. I have to moisturize twice a day due to how dry my skin is due to an autoimmune disease, so I use a moisturizing spray in the morning or at night (whenever I’m not taking a shower) to dampen my skin quickly and then apply. You will use less product this way also.