Thank you for your question. As long as you are healthy, it is possible to do a brazillian butt lift at 46. It is not at all uncommon in practices that perform this procedure commonly. The most important issue is to determine whether you are a good candidate for the procedure from an anatomic point of view. See the video link listed below for further information. Best wishes!
Age by itself will not prevent you from having the surgery, and I have done the procedure for women in their seventies. The price and quality of result will vary tremendously. Find a BBL expert who performs hundreds of BBLs each year and has great reviews and great before and after pictures.Kenneth Hughes, MDLos Angeles, CA