A Botox Lip Flip is an entirely different use of Botox. For down-turned angles of the mouth, such as seen in the photos provided, Botox can be used. However, in the thirty-two years I have been routinely injecting Botox for cosmetic reasons, I have not found it to provide consistently pleasing nor particularly long-lasting results when used for down-turned angles of the mouth. An appropriate HA lifting filler, on the other hand, when injected with the proper technique, can produce immediate gratifying improvement. My last three patients yesterday in fact had precisely this problem treated in this fashion, each with immediate straightening of the angles of the mouth. You would be wise to consult with an experienced, board certified cosmetic dermatologist, and best of luck.