Injectables should only be purchased from the manufacturing companies directly, and therefore, those companies only sell to licensed physicians. While you can technically buy fillers or Botox online from various sources, this is illegal and many of these sites have either gray or black market drugs and you won't know what is being injected or used. Also, who do you plan to have inject these for you? These are medications and need to be injected by properly trained physicians. An online search can show you what can happen when untrained hands try to use Botox or fillers. Therefore, visit a trained and licensed physician only, so you know you are getting what you want.
"This answer has been solicited without seeing this patient and cannot be held as true medical advice, but only opinion. Seek in-person treatment with a trained medical professional for appropriate care."