"Most authorities would still recommend use of other preventive methods such as condoms, " even if the HIV-positive sexual partner is on antiretroviral treatment, Kevin De Cock, director of the Center for Global Health at the U.S. Centers for Disease Control and Prevention, wrote in an email.

WSJ: AIDS Study Marks Prevention Breakthrough With Antiretroviral Drugs

The study of 11, 161 people between the ages of 16 and 44 from across the UK found that a minority - one in five men and one in four women - have had one sexual partner over the course of their lives.

BBC: 'Promiscuous' Britain uncovered

One major key to safety, regardless of whether one cares to use these products, to be in a monogamous sexual relationship where neither partner has an existing sexually-transmitted infection.

FORBES: Sex Safety and Personal Lubricants