Wright's Traditional Soap has been a favourite of mine since early childhood. I've always known it as Coal Tar Soap but I only recently learnt that it doesn't actually contain coal tar anymore.
According to Wikipedia, the original product developed by William Valentine Wright in 1860 was made from liquor carbonis detergens which is the liquid-by-product of the distillation of coal to make coke. The liquid was then made into antiseptic soap which was used to treat skin diseases.
I'm not sure exactly when coal tar stopped being used in the soap but it was replaced with tea tree oil instead which contains antibacterial properties. The soap does however contain 'coal tar fragrance' which gives it a rather distinctive smell compared to other soaps.
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