This is the Original Brazilian hair treatment, and Denise has the years of experience and product knowledge that gets you "The Look." It gives your hair shine, style, no frizz. In the mornings, I can just brush and go. In humid climates, and in Portland, OR, no frizz! One treatment lasts 14 weeks for me. I have frizzy, fine hair that can damage easily, and I also take otc inexpensive Biotin supplements, which helps me all around. There aren't many reviews here which surprises me. Denise and her Brazilian Blow Dry treatments are the secret that people pass by not knowing they lost out on the hair they wanted to have.