I have been using lifebuoy handwash for the last one year. I was ordering the refill pack of 750 litres buy one get one free.
The reason that I used to buy this was due to the fact that the formulation was such that only a very little trickle of Handwash was required to give a very good foam and thus resulted in the longitevity of the product. A 250 ml would last me for 15 days.
But now they have changed the formulation of the product. Earlier the undiluted liquid handwash was thick. Now it is thinner than earlier hence more is required to wash your hands. Hence the longetivity of the product has shrunk considerably.
Hence the usp it had earlier over other brands is no longer prevelant.
Hence I would look to check out other brands with similar quality with better longetivity.
