The most amazing remedy that I have found for puffy eyes (also great for the complexion in general) is to slowly sip warm lemon water every morning on an empty stomach (approximately 1/8 to 1/4 of a lemon, squeezed into a cup of hot or room temperature water). This is an Asian beauty secret for flushing toxins and excess salt from the system. It also re-alkalinizes the body and helps to balance the pH level of the skin.
One of the best products for under-eye puffiness is Phyto-Contour by Yon-Ka. It contains rosemary extracts which helps reduce water retention. I apply it every morning together with drinking my lemon water.