OK I have been using this for 3 weeks. Let me remind you I have NEVER had lashes ever even using mascara they would still be puny, stubby and short. After 3 weeks and using the same mascara I can say YES it works. I still can't see them without the mascara but with it on, there is a difference! They are almost touching my eyebrows not there yet but oh so close. I did take a before photo so I want to finish the tube and take an after. Also I will start Lumigan after this is done as it is SOOOOOO much cheaper to use. At 50USD for Rapidlash I couldn't keep it up. So for those you wanted to know it does work.