check out "senscience" or "schwakopf" ... do treatment.

Wash ur hair with shampoo and towel dry ..
Make sure when you towel dry it, ur hair is not too dry or not too damp.
Apply either senscience or schwakopf treatment cream OR mixture of both.
Then jz put on shower cap (buy from watson - dual layer type - it's thicker and it costs around RM 6.90, i think).
Leave it on for minimum of 2 hours .. then jz rinse off.
U can repeat twice a week if ur hair is particularly spoilt. Otherwise, jz repeat as necessary lor. Then once a month go to saloon to do steam treatment lor.