The difference between Botox and fillers is how they work to reduce the appearance of wrinkles and fine lines. Botox smooths out wrinkles by relaxing muscles and limiting their movement, whereas dermal fillers restore or add volume to areas of the face.
In other words, fillers work by “filling in” wrinkles and can also be used to add volume to other areas of the face, such as the cheeks or lips, while Botox “freezes” muscles to reduce wrinkles and fine lines.
Read more about the difference between Botox and fillers in this Brentwood Dermatology article.