Aging is a natural phenomenon and no matter how much we try to fight against it, we will experience it at some point. It is irreversible and inevitable and comes in two different ways. There is extrinsic aging which is caused as a result of the environmental factors and unhealthy lifestyle, and intrinsic aging which is age-related. Either way, aging slows down the production of elastin and collagen which could make your skin to look older than your age.
However, we are in the 21st century where nothing is impossible, and even though you cannot prevent aging, there are various natural remedies which have been tested and confirmed to be effective in boosting production of collagen, wrinkles, smooth fine lines, and tightening sagging and loose skin. If you are still wondering what they could be, here they are: http://relivinglifestyle.com/natural-remedies-to-aging/