Do Botox and Juvederm contain gluten or casein?

The packaging does not indicate that these agents are contained in Botox but I agree with Dr. Rueckl that you should reach out to the manufacturer to confirm that it does not contain minimal trace elements that would be contraindicated for you.

To the best of my knowledge they do not (however dysport contains lactose if you have a milk protein allergy). If you have allergies to these substances you should contact the manufacturer to find out directly from the source. Hope that helps! 

Not as far as I can tell from the packaging or inserts or experience. But if you have questions, you can always check with Allergan, the company that makes these products, to verify exactly what you need to know. Their phone number is 1-800-433-8871 and then you can follow the prompts. I have many patients with gluten allergies and sensitivities and none have had issues with these products. "This
answer has been solicited without seeing this patient and cannot be
held as true medical advice, but only opinion. Seek in-person treatment
with a trained medical professional for appropriate care."