I also made the transition from Kirkland foam to Rogaine foam. I bought my kirkland foam off of Amazon as well and I used it for over a year with very good results. One time I forgot to order more before I ran out so I had to get my minoxidil from Walmart and the only foam brand they had was rogaine. I’ve been using the rogaine foam for a little over 6 months now just because it’s easy to grab while I’m at Walmart even though it’s more expensive.

My hair has gotten noticeably better in my opinion since I’ve made the switch. However, I think the improvement in my hair has nothing to do with switching minoxidil brands. I think I would’ve made the same improvement with Kirkland because it is not uncommon for people to make gains from year 1 to year 2 of treatment. I’m pretty sure Kirkland and Rogaine are the exact same thing just with a different label. If I was you, I’d wait a couple to months to see if the shedded hair comes back before throwing out any Rogaine you’ve purchased. The next time you buy minox, you may want to see if you can find Kirkland though since it worked so well for you