I heard nettle is good for the hair so I bought this one as it is hard to find any in America. I didn't expect it to help with my dandruff because nothing ever works, but this did! It also greatly helps with frizz on my wavyish curlyish hair and makes my hair soft but not weighed down with oil. It really is the best shampoo I ever used before but so expensive and hard to get. Maybe I will try another one and see if I have the same result.