"Only by educating young people about the positive aspects of sex including the effective use of contraception and the avoidance of negative outcomes can we hope to combat these growing trends."
The average age for having sex for the first time is 17 in the UK.
Separate research shows that worldwide the average age is 18.
Scots also have more lovers than those south of the border, the study indicates.
Those aged between 16 and 55 said they had had more than 10 sexual partners, compared with an average of nine among the rest of the UK.
Taking risks
The report indicates that 30% of 16 to 20-year-olds in the UK are not heeding safe sex messages, and had unprotected sex in the past year.
This compares to just 7% of the over-45s.
Sarah Rose, Durex's marketing director, said it was vital young people listened to the safe sex message.
"While many people are clearly listening to the safer sex message, there are those, particularly among the younger age group who are choosing to take risks," she said.
"We need to continue to educate people - especially young adults - about the importance of good sexual health."
Anne Weyman, chief executive of the Family Planning Association, said the report confirmed the association's fears that young people were taking risks with their sexual health.
"They are particularly susceptible to unplanned pregnancy and sexually transmitted infection (STI), with 16 to 19-year-olds demonstrating the highest increases in diagnoses for chlamydia, gonorrhoea and genital warts.
"Young people may appear to know it all, but the reality is very different.
"Only by educating young people about the positive aspects of sex including the effective use of contraception and the avoidance of negative outcomes can we hope to combat these growing trends."
Durex also asked British men and women who set their pulses racing.
Nearly a quarter of women said their top heart throb was actor George Clooney, followed by Mel Gibson, and then in joint third position, Tom Cruise and Brad Pitt.
Men rated Friends actress Jennifer Aniston and tennis player Anna Kournikova as the world's sexiest women - each receiving 15 % of the vote.
Singer and actress Jennifer Lopez came third, with 13% of the votes.