There are about 80 to 150 eyelashes along the eyelid. Eye lashes are five to fifteen millimeters long, with the lashes of the upper eyelid longer than those of the lower eyelid. Eye lashes protect the eye from dust particles and from dehydration. Long and curved eyelashes are a beauty ideal.
Certain eyelash serums increase eyelash growth, including length, thickness and darkening of eyelashes.
Transplanting individual hair follicles from the eyebrows or legs can help create thicker and longer eyelashes.