The Restylane used in Tearfill contains lignocaine and so it is virtually painless. The Tearfill is done using a single entry point on the upper outer cheek and that entry point is first prepared with a tiny bleb of local anaesthetic to prevent discomfort. The canula is passed through the soft tissue to the tear trough hollow and this is barely felt at all. The actual injection is not felt at all.
Usually the Tearfill treatment takes between 25 and 40 minutes, average half an hour.
The results are seen immediately.
Tearfill lasts a minimum of 6 months and, depending on how much is used and precise location, can last up to a year.