Bio-Oil is a specialist skincare oil that helps improve the appearance of scars, stretch marks and uneven skin tone. Actually, it really does not work for eyelashes growing. However, don't give up. Tea tree oil and olive oil can help you. Also, vegetable oils, which are triglyceride extracted from plants has the same functions as tea tree oil. You just put some such oils on your fingers and massage them on eyelids carefully once a day. A week later, you can see the result. Also, you can use honey with warm water to wash your eyes every morning, and ginger is also okay, which are good to cultivate eyelashes.