I just started using this conditioner a couple of weeks ago and wow, what a difference!! All winter, I have been dealing with a itchy, dry, irritated scalp. I was using another product from Costco that is suppose to relieve this problem. Well, it wasn't working. Now, after trying this conditioner for only 2 weeks, my scalp literally feels 100% better. I wont be using anything else., especially during the winter season. Thank you!!