Let start with basics we should all be doing.  You cant make collagen without vitamin C.  We do lose collagen every day.  If Hollywood treatments like like Thermage or Exilis are not in your budget at the very least, get your daily intake of vitamin C supplemented.  I remember reading that even eating oranges is not going to cut it.  They tested oranges on a shelf and the amount of vitamin C varied all the way down to zero for those that had been on the shelf too long.  And while you are at it make sure you get your daily dose of vitamin D, especially if you are using sun block.  There have literally been thousands of studies that support the benefits of vitamin D for everything, and every disease and even depression.  Also my favorite supplement is fish oil.  If it tastes fishy return it. You want a formula with the most DHA and EPA, side effect, its brain food and will help with your moods and brain health.  There are also countless studies to support the use of fish oils.  If nothing else use sunblock, assuming you dont smoke, the no 1 thing that ages yours skin.  But the sun is no 2, so use sun block but take vitamin D, C and fish oil.  Almost forgot, water, no 2 right behind air to live.  We all have friends who drink lots of water.  I have noticed those that do have the best skin. If you are looking for vitamins for your skin try Genetiskin which I researched and developed with Dr Lisa Zdinak.  PS as I said I have only done 1 every 5 years, but we have patients who make very little money but who save all year to do their Thermage treatment because the one thing they really want to do is turn back the clock and they want the ultimate anti aging treatment for their face