Bests & Worsts Reviews from Amazon

I have been using Rogaine for about five years and have had great results. I ordered two 3 packs on May 30, 2018, and paid $25 each. When I started using the first bottle, something didn't seem right. I experienced an increased amount of shedding after the first couple weeks. I put the remaining quantity aside and went back to using the Rogaine I regularly purchase from Walgreens (same packaging, same everything as far as I know). Everything went back to normal shortly after returning to the Rogaine I purchased from Walgreens. Recently, I finished one bottle of the Rogaine I purchased back in May from Amazon. Again, I experienced shedding. After returning back to the Rogaine I purchased from Walgreens, by scalp began to itch just like it did when I started using Rogaine for the first time years back. Either the Rogaine I was shipped from Amazon was a bad batch, or it is fake. Either way, I do not trust it, and I will never be purchasing It from Amazon again. When the price is too good to be true, then something is definitely wrong.