Imo, most of the people buying cosmetics from Priceline will...

Imo, most of the people buying cosmetics from Priceline will continue to do so. If you consider that currently, without Amazon in the picture there are already a multitude of outlets selling cosmetics, online and off, local and overseas - Amazon becomes just another player. It's a bit of a stretch to think that everyone will just start buying from Amazon when they already have a stack of other options, Amazon will just be another one. I'm not suggesting Amazon will have no effect, but I think the effects have been overdone at this point in time.

To my knowledge, most pharmacies do not carry a wide range of Vitamins in store (online might be different), with the exception of Chemist Warehouse and perhaps Cincotta (NSW) who are into them bigtime. But again, already plenty of alternative options available regarding vitamins.

Time will tell how this plays out.