I bought this stuff off of Amazon for less than $5.00 (with shipping and handling) about a month ago and I use it every night before I go to bed. I have seen a significant difference in my eyelashes since I started using it. They're definitely longer, thicker, and have more volume. It seriously looks like I'm wearing false eyelashes! I can't believe how different my eyelashes look in just one month of using. I actually noticed the difference the first week I started using it. I recommend this product to everyone! :)