you can get both of them at loads of shops - i think gaia is even at coles. i have used diff products from both, and they are both good. gaia is cheaper and is great - recommend it (i use their bath wash and their shampoo - DS has LOADS of hair and i am about 1/2 way through a bottle of each - he is 16 mnths)
i liek them much more than the other brands which do have some nasties
in the earlydays olive oil is also good.. and weleda make some gorgeous producs as well...