The over-the-counter medication which could help reduce risk of skin cancer

There are around 155,000 cases of non-melanoma skin cancer each year, according to Cancer Research UK - (Getty)

Nicotinamide, a form of vitamin B people can get over the counter at pharmacies, can reduce the risk of skin cancer returning by repairing DNA damage, according to new research.

A study of more than 33,000 people who had survived skin cancer found there was a 14 per cent risk reduction from taking oral nicotinamide.