Generally I enjoy Saje products.. I started this in Christmas 2017. And this particular product has been helpful when it comes to headaches.. But just recently as in March 2018... I have noticed that in places I have applied this roller, small skin irritations have started in the form of skin pumps. They are small and not significant, but it dose make me wonder if people can have worse allergic reactions to these products... And how dose this company either improve their products, or help/reimburse the customer through such difficult issues. After all we choose this company because we believe in herbal natural alternative healing products. But not to the point were we get other illness or reactions that were un expected.. Most people come in here not knowing what they are allergic too I suspect... But do have other ailments that they hope can be relived ... So while this product did help my headaches.. It left behind unfortunately its mark.. There for I give it a 50/50 vote.. I am not willing to give up on Saje quite yet, and may try their peppermint halo... I hope this helps or informs the company to find ways to better improve the quality of their products, and customers when, or if picking their products for the future.