Dermatological testing is done on each Durex condom to assure its durability and high degree of protection. No type of birth control can completely stop you from becoming pregnant, contracting HIV, or getting another STD. Particularly when using condoms for anal or oral sex, please read the instructions. To make making love comfortable and exciting, experiment with different Durex condoms or splurge on Durex's Play line of lubricants and rings!