Shawn, thanks for the Costco info, but I already new that. I don't use minoxidil liquid/spray, because the propylene glycol in it, causes scalp/skin itching. I use minoxidil foam and melt it into a liquid in the microwave (for quick application) and since it doesn't contain propylene glycol, no skin itching/irritation occurs. In the past, I used a custom liquid formula that didn't contain the propylene glycol, but the FDA took Dr.Lee's formula off the market.
Anyway, my point is not to buy they cheapest, but to get a good price on something effective. INNV indicated at one time, that it was involved with dermatology products, which is what minoxidil is considered, because it deals with hair and hair and skin are in the same medical category, dermatology.
I would gladly pay a few dollars more than Costco's price, just to support INNV, so Dr.Damaj, start selling Minoxidil!