"i highly recommend this medication. i am 15 and have had mild to severe acne since i was around 12.  i have been using this for 2 years off and on. about 4 months ago i started using it religiously and saw a dramatic difference. the only problem is it makes your skin dry and or flaky during the first period using the medication, which is why i gave it 9 stars. but nothing compares to the result. i only get very small pimples and i also has decreased my acne scars dramatically with use. overall if you are having problems with acne (especially with confidence issues resulting in acne) then i highly recommended this medication! i use .05."