I just received Botox from a Groupon deal yesterday. The liquid in the syringe was a yellow color. I am concerned.

This should not be the color of Botox. Botox is usually clear in color once its mixed. I would go to the office and have them tell you why the Botox was yellow in color. That is not good and you need to find out what they injected into your face 

This is very unusual. Botox is reconstituted with a clear solution and there should no color to it. Maybe it was in a yellow syringe but it is difficult to say at this time. If you have concerns, I would see that doctor and ask questions.I hope that helps

The only way that a place can make money from offering Groupons for Botox or any other cosmetic treatment is by cutting corners and cheating the customer. It looks like this is what happened to you. Botox, or any other neuromodulator (Dysport, Xeomin) are always clear. They will never be yellow. You probably did not get real Botox. Please use caution as serious complications can occur this way.

The very wording of this question  provides the answer:  you probably did not receive Botox and a syringe of Botox should not be yellow.  Is Botox something you should be purchasing on Groupon?  Asking a medical professional to inject you with Botox is entirely different from buying a set of tires.  Although Botox is a product, its application and efficacy depend on the Doctor injecting it.

Hello again, I have updated my answer with a web reference to better answer your question. Hi chanteuse. None of the different injectables are yellow-Botox, Dysport and Xeomin are clear liquids. Consider going back and discussing your concerns. your records and consent will indicate what was injected. please remember you are paying for the expertise of the injector, and not just the product. Best wishes,