I am shocked at these positive reviews. I have tried several eyelash Serums and most either thickened or lengthened my eyelashes. Woolash has ruined my eyelashes. Not only does it not work, but many of my eyelashes fell off. I naturally have long eyelashes. They are no longer there. Their customer service is almost non existent and they charge you for shipping. Do not fall subject to this terrible product. Would rate zero, but it's not an option.