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.
Eyebrow Enhancing Serum. Item #: 2278513 Size: 0.1 oz. From the creators of the award-winning RapidLash Eyelash Enhancing serum, sister-product RapidBrow works to help condition and improve the appearance of fuller eyebrows in as little as 60 days!