Hi,
I agree with you that coal tar usually makes matters worse as it tends to burn the skin a little, most dandruff shampoos work on the same princple of burning the top layer of scalp, leaving a new and clear skin behind. Obviously this is self perpetuating and not an actual solution.
Because of the ammount of clients that I have come across with the same problem I endevoured to develop a shampoo that heals and not conceals the problem.
Based on the fact that Borage seed oil is so effective on eczema,psoriasis and dermatitus it seemed obvious that a Borage based shampoo was the answer.
This shampoo has proved to be a great success and if you want take a look at my website for further information please do.