I do think that you need to apply as directed, morning and night and rub in well. Then just sit back and enjoy less hair re-growth!
I have recently purchased this item (at Boots sorry). It came in a twin pack with a hair removal cream (which i hate using anyway), i found the cream to be plesant tho! I use it primarily on my under arms and does not sting/burn at all! The Hair No More spray is a miracle! Even after a few days i noticed that my under arm hair took much longer to grow back. As i am constantly at aquafit classes shaving is tiresome and i am much too much of a wimp to try waxing. Have used it on my upper lip and few hairs on my chin and after my next epilation will almost certainly use it on my legs.
I am so impressed with this product i am certainly going to buy more Skin Doctors products!