The ULTIMATE guide to Botox - and its very surprising secret uses

For decades now, Botox has been the go-to treatment for celebrities who are looking to halt the aging process and maintain their youthful looks. 

When many people think of the injectable, they conjure up images of stars with frozen faces that are incapable of forming even the subtlest of expressions. 

But is that reputation really warranted? 

As New York-based plastic surgery expert Dr David Shafer explains, when used correctly by professionals, Botox can be an incredibly powerful and effective tool for maintaining youthful looks - without the so-called 'frozen face' that some can suffer from as a result of taking things too far with the injections.

And while Botox is certainly an impressive treatment when it comes to preventing - and even eradicating - wrinkles, that is far from the only thing it does. 

Decades before it was being injected into the faces of aging stars desperately trying to maintain their youthful looks, the key ingredient in Botox was being used to treat crossed eyes and facial twitching... and in more recent years, the formula has been linked to the treatment of depression and anxiety. 

Watch on as Dr Shafer explains everything you need to know about the popular anti-aging treatment... from identifying the perfect time for your first injection to its little-known medical uses.