I give three stars because everyone has a different nature of the scalp or of his hair. One can not tolerate it and the other stop. I had after the second application such a strong burning sensation on the scalp and the hair was like straw that I had to stop the treatment and again (after 15 years of success) to my Crisan had to. I wanted to once again try an organic product and am never averse to keep eye out for organic products but it must not have a negative impact on my body. Nevertheless, three stars because it 1. can work better with others, and 2. because it was with me promptly at home.
Update
I must now also unfortunately pull two stars because I realized that I am extremely allergic to any ingredient and almost all over the body have a rash. Now I had another 20 Euro for medication to spend to alleviate the pain or get rid of the rash. It should at least be doing that the oils used can cause allergic reactions. I use again in the future my Crisan dandruff, so I have 17 years of good experiences.