To get to the bottom of just how zinc works its magic in this way, we polled cosmetic dermatologists like Dr. Shamban to get the answers. Some studies do show a connection between longer-lasting Botox results and zinc, but limitations also exist with the data. Zinc picolinate, zinc citrate, and zinc glycinate are bioavailable forms of zinc, meaning they are more readily absorbed by the body. Besides zinc, other factors are known to influence your Botox results and how long they last. As the science around the pairing evolves, it may one day be considered a more definitive way to extend Botox results.