If anyone is interested the ph scale is logarithmic which basically means that when you go up one number it gets 10 times more alkaline, so ph 8 is ten times more alkaline than ph 7, 100 times more alkaline than ph 6 and 1000 times more alkaline than ph 5.
That would make Johnsons baby shampoo around 1000 times more alkaline than hair!
That would make Johnsons baby shampoo around 1000 times more alkaline than hair!