I HAD terrible dandruff. I tried so much "stuff" The only shampoo that got rid of it is T/Gel therapeutic shampoo by Neutrogena. I also use the T/Gel therapeutic conditioner. Apparently, it has "tar base" and that's why it works. I also use "Doctor recommended Psoriasis Ointment" for dry skin areas that I have ie forehead and behind my ears. I have gotten prescription shampoo and psoriasis medicine from my doctor which didn't work. I am so glad I found the Neutrogena and ointment. I hope this helps.