This product suit me a lot I use it a lot of years its great shampoo Been using this for a couple of years. Quite effective in dealing with my oily scalp and roots. Does not build up and leaves hair clean, light and shiny. Too many shampoos now leave a build up but this one doesn't. I'm not aware of a tingly sensation but the smell is like minty toothpaste. Slightly drying on ends if you have long hair but I use a good creamy conditioner to solve that. Would recommend to anyone with oily scalp/hair. Cap on plastic bottle is somewhat hard to open in the shower.