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.
At A Glance: Our Choices for The Best Serum for Oily Skin. If you are hard-pressed to find a serum that can even out your skin tone without making your skin oilier that it already is, then Eminence Stone Crop Serum is your best pick. It has high water retention properties and leaves your skin matte and shine-free. Vitamin C is beneficial for oily skin and that's why Cosmetics Skin Solution Vitamin C+E Serum has made it to our list. Containing a pH of 3, this serum can prevent excess oil production and even skin breakouts in the long run.