This conditioner is sold and shipped by Amazon directly, should be good. I got my last refill on ABEX, but this is where I'd order from normally. There's a mayuko shop selling the shampoo via Prime right now, I've bought from them before. Doesn't look like they have the refills right now, just the pumps.
I actually decided to give these a try because of a camellia oil sheet mask I tried and loved, it makes my skin so soft and plump. I figured if it's good for my face, I might as well try it on my hair!