The capsule is no bigger than a grain of rice but it is implanted under the skin and stimulates the production of melanin.
By releasing the chemical, the skin would become darker and could resemble a healthy bronzed tan.
Although the implant was initially developed by medics in order to alleviate skin conditions, experts believe it could be taken up by the beauty industry.
An estimated three million people a year use sunbeds and any products that could improve tanning are likely to be popular. Millions more use spray tans.
Read more: http://www.dailymail.co.uk/sciencetech/a...ntists.htm