A treatment for hereditary hair loss Regrowth hair Minoxidil 5% Scalp Solution Dry hair and baldness area before using HairGrow® 5% Solution. - Apply the dose consisting of 1 ml by applying pressure to the area to be treated 8 to 10 times. The solution is massaged and spread by the fingertips. Leave to dry automatically. Hair dryers are not necessary, as they may reduce the effectiveness of the drug. - The solution must be used twice daily for four continuous months to notice the desired results. .