I buy this Pantene Full & Thick Shampoo about every 4 or 6 months, lasting me about a month for the regular smaller sized bottles. I really don't need my hair to look thicker as I have a lot of hair and it is thick. My hair is coarse and thick and usually pretty heavy. I just like this shampoo because it makes my hair feel fluffy and full. I always notice a difference in my hair when I begin to use it. I sometimes have oily hair so I usually wash my hair everyday. It does not seem to affect it using it everyday. I don't style my hair so I do not know how it would work with styling. I sorta of...