Why isn't Botox/Dysport not working for me? I'm new to these injections. Do bigger foreheads need more work? (photo)

It is difficult to give you an accurate answer without close examination but based on your description it sounds that you did not get enough botox to be effective enough.

Examining you in person would be helpful to give you the best advice.  It is possible that the Botox and Dysport have relaxed your muscle but that you still have some indentation remaining.  If this is the case, it is possible that an injectable filler could be used to obtain a smoother result in the glabellar area.  

Without knowing more about your treatment it is difficult to say what is occurring. Botox works by affecting the ability of a muscle to contract. Dysport works in a similar way. It takes approximately three units of Dysport to equate to one unit of Botox. I encourage you to begin by visiting with an expert injector near you for an evaluation. Though not impossible, it is uncommon for a new user to be immune to neuromodulators like Botox and Dysport.

Everyone has unique expressions. We move our facial muscles in a repetitive way and over time those repetitive movements cause wrinkles and fine lines. When you start to experience the signs of aging, Botox are available to diminish unwanted wrinkles and creases in your face.
Botox locks the release of a chemical called acetylcholine, which triggers the muscle contractions that create wrinkles. Botox essentially paralyze the muscles and stops them from contracting. Results from these treatments are visible within 3-14 days with results that can last anywhere from 3-4 months.Botox be used to improve:Worry lines in your forehead Lines between the eyebrows Smile lines Laugh lines from nose to mouth Crow’s feetNext step for you is to schedule an appointment with a Board Certified Dermatologist to discuss your options. Hope this helps.

I suspect you probably need a higher dose for a better result. Resistance to Botox or Dysport is rare in my experience. 

HiYou probably needed more than the 30 Botox units that you were given There are many reasons why the effects wore off off sooner than the expected 3-4 months. Total number of units, depth of injection, dilution, and freshness of the product matter. The size of the area to  be injected and muscle strength are also very important considerations. True Botox resistance is very rare. You may want to seek a second opinion.All the best,Justin Harper, M.D.

Dear San Jose,Thank you for your question.Botulinum takes about 7-10days to give results.Proper quantity and mixing of formula is needed. A freshly prepared botulinum to the manufacturing dilutional recommendations and injection technique are also important.Using more botulinum and a different injectionist may help.Best. Dr Brecht