"i have an unknown skin condition (seen multiple derms, no one knows what i have) that i use biacna to treat (had to go off of oral anti-biotics). my initial breakout from this product lasted 1.5 months and was pretty brutal since i don&#039;t suffer from acne. i used the product every other day for 3 months straight but was still breaking out from the product around my chin. my skin can&#039;t tolerate being washed with cleanser in the morning so i use a washcloth and water to remove. almost no flare-ups of my skin condition since started using. derm had me switch to using the product daily and now 1 additional month later (4m total) i am near-acne free and facial redness i had from the product in prev months is now reducing a lot"