Retailers should stock up on hair products as well as beer, lemon juice and raw eggs to attract female customers. According to a survey by Boots, women spend a whopping £37,000 on their hair in a lifetime. The typical British woman spends £24.11 a month on shampoos, conditioners and styling products, on top of splashing out for cutting and colouring. And when it comes to their hair, it seems they'll try anything. Some 14% say they've washed their hair in beer, 27% have used lemon juice for highlights and 10% have tried raw eggs for shine.