very poor design [SEP] unfortunately i cannot comment on the efficacy of this product because both bottles that i purchased had a faulty dispenser no lotion passed through them despite the fact that they appeared intact i requested a refund and received it after shipping them back better quality control is necessary i decided to try my vitamin c serum with hyaluronic acid on the scar and to my astonishment within a couple of weeks the scar tissue was replaced with healthy new skin