One of my friends is a hairdresser and she loves this duo for her clients. She gives me a sample of it and I tried it once. I did not see any change in my hair but it cleanses well as well as doesn't dry out my hair. I buy this duo and use it regularly, after 2 weeks I seem positive changes. Now, my fine hair looks thicker and voluminous. I was happy to have this and recommend it to others!