Muscle relaxants are employed to address wrinkles and lines resulting from repetitive muscle contractions, such as smile lines and forehead creases. They function by temporarily reducing the activity of the underlying muscles. Dermal fillers, on the other hand, are utilised to plump up the skin by increasing volume. They are used to fill in wrinkles caused by sagging skin, replenish lost volume due to ageing, or enhance facial features such as the lips and cheeks.