Not 100% sure how safe it is particularly for damaged feet. [SEP] Had originally planned on using this for my feet but given I have some cracks it mentioned not to use on cracked or hurt feet because it could sting and other similar side effects. I am not sure whether to use this product or not because it also mentioned that it is possible that it will sting whether or not you have cracks on your feet or anything similar. I am a little worried if I should use this at all. I am gifting this away because I do not want to hurt my feet. I hope it helps someone else.