Injecting botox first and then to follow it immediately with a filler (Dr Young in Bellevue Washington) can risk problems with moving the botox around. There is not sufficient scientific evidence documenting the safety of both at the same time. It is not widely accepted. If the botox and restylane are used in different places then it is more okay and accepted in my opinion. I like assessing the results of the botox first and determining if the results of the botox is achieving the results that you or the client likes. If more results are desired then you can consider the filler 2 weeks later. This also allows the filler to stay longer because the muscles are not causing the dispersement of the filler and also the metabolism of the filler to be increased.
Thanks for reading, Dr Young
Dr Young specializes in Facial Plastic and Reconstructive Surgery and is located in Bellevue near Seattle, Washington