No guesswork: treat and prevent every day Under stress, the bacteria behind breakouts do something clever: they hide. They organize into a biofilm (a kind of shelter ordinary treatments don’t target), where they wait to flare up again. The Corrective Serum gets to that biofilm* and targets the skin’s microbiota while its gentle succinic acid of biotechnological origin clears pores without the sting of harsher acids. 82% blemishes are reduced** after seven days 88% shiny areas are reduced** after seven days 88% blemishes appear less frequently, are smaller and clear up faster*** after two months. Apply two drops as the essential first step of your skincare routine , morning and night. Simple. Every day. #mysisleyparis sisley-paris.com *In vitro test. **Satisfaction results, 34 volunteers, after 7 days and 2 months of use. ***Satisfaction results, 34 volunteers, after 2 months of twice-daily use.