BE NICE AND ENJOY - such inscription on tombstone was found in ancient Egypt.
The first source that BEAUTY-MIGHTY WOMAN'S WEAPON was Bible. 
By one legend - ability to beautify was presented to people by Greek God Hermes. 
From ancient times people cared about face and body beauty.
Original meaning (from Greek language) of the word "cosmetics" - ability to beautify, decorate, art. 
As Greeks used to say... BEAUTY- pulchritude, moral perfection...