I am 72 hours post 20 units of Botox in the Glabellar region. I have zero relaxation and can fully contract the muscle.

Though Botox will begin to show effect in 24-72 hours in the majority of patients, the full effect may not be realized for a week and even up to 2 weeks.  Follow up with your surgeon at 2 weeks if you still see no change.  

Hello, and thank you for the question. In general, it is important to keep the following things in mind regarding treatment with Botox:1) It can take 1-2 weeks to see the effect of the treatment 2) It is best to wait until the treatment takes effect before evaluating the end resultI would give it a little bit of time, as the treatment likely needs a bit more time to kick in before the result is apparent. Your provider should be able to address any questions or concerns, as he or she knows the details of your treatment. I hope this information helps, and I wish you the best of luck.