It is suitable for wrinkles on the forehead and between the eyebrows.
There were no wrinkles on my forehead unless I made an expression, but there were wrinkles between my eyebrows even when I didn't make an expression, and fine lines started to form. But after about a week of getting Botox, they started to straighten out, and after two weeks, my forehead started to glow.
It won't last long, but I plan to get it regularly as it will prevent wrinkles in the meantime. I'm very satisfied.