For keeping the roll that only appears when smiling.
Hyaluronic acid is placed in a fine line in the shallow layer just under the eye to create a slightly raised roll. It recreates the roll that appears naturally when smiling. The area is thin, so overfilling can look puffy or lumpy, and it is placed in small amounts.
One session lasts six to twelve months, varying by product. The eye area moves constantly with smiling and blinking, so it absorbs faster than other sites. Only a thin line goes into a shallow layer, so the volume is small to begin with, and keeping the shape means topping up relatively often.