I have a serious problem with my hair since I was little. Oily scalp, dandruff, atopic dermatitis on my face, resulting in itchiness and redness on my scalp. I have tried almost all shampoos.
With regular shampoo for oily hair, my scalp doesn't stay clean even for a day. Every night, my hair needs to be washed because it becomes excessively oily, resulting in intense itchiness on the same day.
If I try other specific therapeutic shampoos for dandruff, dermatitis, and oily hair, my scalp needs to be washed every day. For example, if I wash my hair on Monday night, by Wednesday afternoon my scalp needs to be washed again. This has been (and probably was) my solution for years. Lately, even this type of shampoo hasn't been helpful.
Two weeks ago, by chance, I came across the above sample at the pharmacy (I have uploaded a photo). I had nothing to lose, so I tried it as well...thinking it would be the same as before. I didn't expect anything better.
Well...I have used this shampoo three times and I am amazed.
The last time I washed my hair was on Tuesday and today is Friday night, and I haven't washed it again yet.
My hair is still dry and, of course, I haven't experienced any itchiness. Note that the shampoo doesn't mention that it is for oily hair.
I'm not telling you to blindly go and buy it, but to find some free samples for a trial first. Use it with both hands during each wash and leave the shampoo on your scalp for two to three minutes.
As it seems to me, with intense oiliness, itchiness, and dandruff...it has done something for now. I will buy it.