My personal experience and the feedback from our customers has been that it actually makes your hair feel thicker. We have had several customers tell us that immediately after rinsing they noticed their hair felt thicker (one even said, "plumper"). The truth is, all hair types and conditions are different, so for one person they may notice a difference right away, and others it may take several uses. One of the reasons the hair feels thicker is because of the Hydrolyzed Quinoa Protein within it naturally coats, protects and feeds the hair follicles from within. It contains 9 essential amino acids which act as natural strengtheners, which protect the shaft of the hair, help to repair damaged hair and promote healthy hair growth. So as you continue to use the product and as your hair is growing you, you will likely notice your newer hair feeling thicker, stronger and looking & feeling more healthy.