Bests & Worsts Reviews from Amazon

I started using Rodan & Fields. I used for about 3 months and it really did work. My lashes grew. I was going to re-order directly from them, however; they were out of stock. I waited about a month, using no serum on my lashes, and reached out to R&F again. They were still out. So, I then found this product on Amazon, read the reviews and decided to purchase. I have been using for a month and really haven't noticed a change in the length, I have noticed a huge change in the thickness of my lashes. I read a few reviews that said it took over a month to see growth in length....so I am about to order my second tube. I'll review after my second month.