Dear Caspermomma, In Missouri, the state laws do allow estheticians to inject Botox and other injectables. I know this because I also live in Missouri. Because it is a prescribed medication, you would not be allowed to perform injections without supervision from a physician or a dentist but the definition of "supervision" is very loose and lax in Missouri. Also, the pharmaceutical companies that sell Botox and similar products have relaxed their requirements of who they will sell to and who they will allow to actually inject their products. This is why we have so many problems with products such as Botox and fillers in our state.
My personal belief is that only physicians, P.A.s, and R.N.s who have taken the injector training courses should be allowed to perform injections. While injecting looks simple and easy, it is not and to get the best results requires an understanding of the anatomy and the pharmacology of the agents being used. This is not something that can simply be learned in a few hours at a weekend course. Also, you have to remember, that with the privilege to perform injections comes the liability of doing so. Lastly, even though you are not a physician, any healthcare worker should remember the primary rule-first, do no harm.