... effect.*Brow wrinkledExcessive depression of the Brow wrinkled, single to botulinum toxin injection, often can't get a satisfactory effect, and ... effect will be better. Excessive older patients, if with botulinum toxin injection except knit, may also be the eyelids droop sequela ... when the grain, though an dynamic grain, but to botulinum toxin injection processing, easy to have the problems of drooping ...