You may not know it, but Kirkland Signature and Member's Mark MinoxidiI Lotion is only sold in the US by Costco and Walmart respectively.
 
The Hair Guys source only genuine 'Kirkland Signature', QGain, and 'Member's Mark' MinoxidiI Lotion from the States by using a shipping agent. Our shipping agents go into Costco and Walmart stores and buy cases of the lotion and then ship them to us here in the UK.

It's an expensive business, but we are still able to supply Genuine Kirkland MinoxidiI, QGain, and Menber's Mark Lotion for less than half of the price of Regaine when bought from Boots.

And with FREE Royal Mail 48hr tracked delivery it couldn't be easier!