I'm not sorry for the sensational title of this post, because it's much deserved from what you're about to witness.  

This video is from artist Rousselos Aravantinos and he's a digital compositor and beauty artist.

His Vimeo page has an impressive collection of videos showcasing his amazing skills. This one stood out to me because of the level of detail that went into it. He shows us a realistic age reduction with the original clip being on the right and the result being on the left. 

Rousselos says: 

This time I experimented with new techniques. The goal was to preserve more fine details of the skin texture, but also not to alter the face dramatically. There are still areas needing finer retouch though! I am studying anatomy to maximize realism! Watch it at 4K!

As a retoucher, I admire his ability to retain skin texture in such a complex procedure. 

Here are some other amazing videos showcasing his skills that I think you'll love!

Via Retouching Academy