So far, just about all the answers to  your question on this site are good...but most of us forget these that I consider important, also, along with the rest: STAY OUT OF THE SUN.......USE A SUNSCREEN IF YOU DO GO OUT IN THE SUN....DO NOT SMOKE OR DRINK; WORST THINGS YOU CAN DO FOR YOUR SKIN..DO NOT USE HOT HOT OR COLD COLD WATER ON THE FACE........ONLY COMFORTABLY WARM OR COOL TEMPS......AND GET YOUR REST!! AND TRY TO EAT RIGHT, AND DRINK THAT WATER.....BUT PLEASE NOT BOTTLED WATER!! GET IT FROM YOUR OWN TAP.........(think of the environmental mess!!)