open trap said:
DuplicateValue said:
Head & Shoulders is apparently very bad for your scalp. Just lettin' you know.
I have never heard this, would you know why it is bad for the scalp.
The only reason I can work out is that it probably contains sodium lauryl sulphate, which can irritate the skin in some cases. As I said in my post a few minutes ago, I find H&S and similar so-called "anti-dandruff" shampoos make things worse. I use a coal tar shampoo, Vosene.
Humans have only been using shampoo since the 1970s, when it began to be aggressively marketed in TV ad campaigns. Before that, it was not recommended to wash hair more than twice a month, and with ordinary soap. Frequent shampoo use causes the scalp to produce grease much more rapidly than it otherwise would, reinforcing the notion that hair needs to be washed frequently to remove grease.