With red hair and fair skin, this is a must in my skincare routine. My skin is also quite sensitive and this (along with the rest of the BASE kit) is lovely on my skin. others have mentioned a white residue, which I can see when I first apply it but after 5 minutes or so, it's gone and I'm able to apply make-up on top if I want to. And again, being a redhead, I've come to accept sunscreen residue over the years but I personally don't see much of an issue here. Others have mentioned that it can irriate their eyes, I find this occassionally too but I just try to be careful and it helps prevent that. It's easy to transport, so here it is with me on our honeymoon in Portgual, and I love that it's a glass jar with a lid, as opposed to a squeezy tube, so I can get the last little bit out before starting a new jar. Many others have mentioned the customer service, which I totally agree with. So in summary, I won't be opting for another SPF any time soon!