"i&#039;m 18 years old and i started taking yaz when i was 14 for the use of treating acne. it did not do much for my acne so i began taking accutane. i stayed on yaz because you need to be on 2 forms of birth control when taking accutane. my acne went away, and then i got a boyfriend so i stayed on yaz. i&#039;ve been using yaz for over 4 years in all of my teen years and let me just say, this stuff is amazing for preventing pregnancy. the pills are a miracle. i didn&#039;t really gain weight on this product, i developed breasts rapidly! i&#039;ve never taken any other types of birth control, but i give yaz five stars. good luck!"