Why are birth control methods only 99% effective at most? 1.78K viewsJanuary 3, 2024 Question90.92K June 4, 2019 0 Comments Why can’t we get to 100% effectiveness? In: Biology 7 Answers ActiveNewestOldest Anonymous Posted June 4, 2019 0 Comments Every single person is slightly different with hormones and genetics, which means that to claim a product is 100% effective, they would have to test it on every single person. You are viewing 1 out of 7 answers, click here to view all answers. Register or Login
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