I recently bought some high end shampoo from my salon, and two things I noticed about it (and have noticed with previous “salon” brands I’ve purchased): the scent is not as perfume-y and sweet as cheaper brands, so the nice thing, for me, is not smelling like “tropical rain” or something like that. Another thing about it is that it’s quite thick. The conditioner was so thick that when I got to the bottom of the bottle, it was so thick that it would not come out, even shaking the bottle upside down. I had to add some water to it and shake it to get the last of it out.
I usually have a few bottles of shampoo and conditioner going at a time, and I switch it up as the mood strikes. I normally buy what’s on sale at Costco, Walmart or the supermarket. I try to buy shampoo for color treated hair, because that’s what I have, and I usually don’t go for a scent that’s too sweet and perfume-y. I also found the Whole Foods 365 brand was nice (lavender scent) and well priced at like 32 oz for about $4. A hairdresser told me once it’s good to use Neutrogena shampoo every so often to strip the hair of buildup from other shampoos and hair sprays and product.