Are there any side effects from Skin Botox, such as unnatural expressions or bruising?

Skin Botox is injected thinly into the skin surface rather than the muscles, so the side effects of unnatural stiffness in expressions are relatively less compared to regular Botox. However, embossing (bumpy marks) may temporarily appear right after the procedure, but they usually subside naturally within 24 to 72 hours. Mild bruising or redness from needle marks may last for a few days, so it is advisable to plan with some buffer time before important events.