So, 100% natural coconut oil is rich in fatty acids and proteins, which is what eyelashes thrive on. When applied straight onto clean lashes, coconut oil penetrates the hair shaft and provides nutrition and hydration for the lash. If the coconut oil is applied by the roots of eyelashes, it can penetrate the follicles and encourage growth. Best of all, it is completely safe for the eyes (unless you have allergies, of course).