Getting a tan using good old-fashioned sunlight can be painful, dangerous and at times simply impractical, which is why millions of people every year turn to alternatives such as ultraviolet light and spray cans to give their skin that tropical luster. Now, a company called Clinuvel has a new option: a rice-sized capsule that would be implanted under a user's skin, prompting the body to produce melanin. The compound in the implant, called Scenesse, was originally designed for medical applications but has since drawn the interest of the beauty industry. The substance has already gotten a nod from cancer researchers, who say it could reduce cases of melanoma.

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