cannot use if you are undergoing fertility treatments or tanned [SEP] do not use if you are pregnant nursing or undergoing fertility treatments do not treat if you have tanned skin tanned skin is at an increased risk of adverse effects with light based devices these are warnings that nira doesn t indicate in any of their marketing but which are included in the booklet you receive with purchase the tanned skin comment is contrary to information on their website saying it is for all skin typesi purchased the device not the serum directly from the manufacturer for they seem to offer a lot of promotions so don t buy this at full price current msrp is and they seem to offer off all the time if you give them your email my off was a link from an influencer s page on youtube tried reviewing on the main device page and got this notice amazon has noticed unusual reviewing activity on this product due to this activity we have limited this product to verified purchase reviews so that should tell us something about the quality of the reviews here i can t offer a review myself of the actual product because of the surprise contraindications i had to give a star rating in order to post this review so i just plugged in also the website says to wait minute before re treating an area the warning label says to wait at least hour