Do Vitamins Affect Botox?

There are some thoughts that excess Vitamin E may  be associated with bleeding which could interfered with Botulinum Toxin (Dysport or Botox) injections. otherwise I am not aware of any other Vitamin interactions.
 

Stopping vitamins prior to Botox injections, especially those that include blood thinning properties (Vit E, etc) is beneficial to reduce the risk of bruising. There is some evidence, although less than scientific as of today, that Zinc supplements can decrease the gap between injection and effective results as well as improving total effectiveness of the drug....but the real scientific verdict is out.

Dr. C

johnconnorsmd.com

There has been no evidence of which I am aware that the effectiveness of Botox or Dysport is affected by vitamins. You might avoid separate vitamin E supplements prior to the injections to minimize bruising but that is not related to the Botox specifically.