Is Aveeno better or Shiseido?

This depends on what product you are buying. I would say that they are fairly even in terms of effectiveness. However, Shiseido is a far bigger corporation and is considered the third most successful cosmetic company in the world.

For everyday use, I would recommend Aveeno since it is cheaper and does a good job. If you are more particular about skin care, Shiseido outranks Aveeno by a fair shot. Despite it being more expensive, it has a higher standard overall.

So overall, Shiseido is better than Aveeno.