My hair dresser told me to buy this since my hair was so damaged. I have thin wavy hair and i have a lot of hair. Also I always straighten and dye it. I actually love this more than the bioalge overprocessed keratin shampoo and conditioner. Even the Keratese conditioner. I kicked those out and use this now. Just really expensive but worth it a must have if you cant even tame your hair. Especially if you have my hair!