This is available at most everyday pharmacies, i.e. CVS Pharmacy, Walgreens, Rite Aid, etc. My dermatologist recommended it to me and after being on antibiotics twice once for 2weeks and the second time for 30days, also I have been on 3 different types of medications applied directly to the scalp 2 of the meds I had to use twice a day, one med I had to sleep with overnight for 2weeks. Talk about a pain in the rear end! I have used Clear Therapy Shampoo and Conditioner now for only 2days and I couldn't be happier with the results already! This brand of shampoo with zinc in it has worked better in 2days than all of the medicine combined. I highly recommend this it truly helps me and I hope that you have the same amazing results!