Using this lash adhesive is easy. First, clean your lash area to remove any dirt or oil. Then, use the brush to apply a thin layer of the adhesive along the lash strip. Wait for about 30 seconds until the adhesive becomes tacky. After that, carefully place the lash strip on your eyelid. Make sure it's well - positioned. When it comes to storage, keep it in a cool and dry place. Avoid direct sunlight. Also, if you have sensitive skin, do a patch test on your wrist first to see if you have any allergic reactions. Before each use, check the adhesive's condition. If it looks dry or clumpy, it might be time to get a new one.