@prettydiary88: Many brightening actives cause peeling or sensitivity when you first start using them, but this buffered niacinamide formula has an ultra-slow adaption curve for new active users. You can start applying full strength twice a day right away without redness, flaking or stinging, making it the safest first active serum for anyone adding treatment products to their basic toner-moisturizer routine. Results build steadily over weeks without harsh skin shock. #beginneractives #bufferedniacinamide #peelingskin #gentleactives #serumlasertreatment #adaption #irritant #safeentrylevelserum #actives? #mildtreatmentYXAJHY296-XSL