Artificial skin that lasts forever

We already have aritificial limbs, however it is not yet accessible to the mass market, but imagine if they ever invent artificial skin that can replace our natural skin seamlessly..and replace our failing organs before they fail..we could theoretically live forever and looking young and feeling healthy forever if we can replace everything in our body with viable synthetic alternatives..from blood to skin..the only thing that might not be replaceable would be our brains but who knows? maybe there is a way to migrate our memories to another brain-like vessel that can replace our brains that will last much longer? I should have been a scientist..it may sound more like science fiction than fact but I have hope, many of the things we considered science fiction has become a normal fixture in our lives, such as cars and cellphones, why not cyborgs and robots as well?