I have lines that extend all the way down to my lower cheek and I tend to use about 12 units each side to treat the crow’s feet. Frustratingly, the under eye lines won’t go away and anti-wrinkle treatment will not fix that. For women, I think a range of 5 to 10 units each side is realistic and again, it depends on how deep the lines are and how much muscle contraction there is.
Men need slightly more units and I think men generally need one and a half times as many units to treat the same area as women. Visit the Cityskin ‘cost’ page for an approximate cost of your crows feet treatment.