‘I spoke to a chemist and we infused caffeine into a shaving cream and not only does it help the skin, but it is actually absorbed into the body.

‘It probably wouldn’t be as effective as a cup of coffee and is more like the effect given from a can of fizzy drink, but you can definitely feel it.

‘There is about 50mg of caffeine in a bottle of the shaving cream and between 40 and 80mg in a cup of coffee.