The direction of pull of the muscles forms a 23Â° angle relative to the visual axis in the primary position, giving rise to secondary and tertiary functions. The secondary action of vertical rectus muscles is torsion. The superior rectus is an incyclotorter, and the inferior rectus is an excyclotorter.
-Marcia. Dear Marcia, Eyelash growth serums generally contain either a prostaglandin derivative, like prescription Latisse, or over-the-counter Revitalash; peptides, like Jan Marini Growth Serum; or vitamins, like Peter Thomas Roth Lashes to Die For.
You will want your anti aging serum of choice to include Vitamins A, B, C and D. These vitamins will help to keep your skin nice and firm, so that you can fight the effects of aging. Face wrinkle treatment is also about the prevention of future wrinkles, sagging skin and other problems, after all. When applying anti aging serums, make sure to use upward motions to discourage sagging, and you should usually apply the serum a couple of times daily for best results.