Is Restylane Kysse safe to inject into the cheeks?

Hi. I did my first restylane filler yesterday on my cheeks. The doctor injected me what's called restylane kysse and I am realizing that this type of filler is not one of the normal restylane in commerce and I am now worried for possible complications. I do not have reactions, but I am concerned about the product and the area where it has been injected. Please let me know what I should do if it is not a good product. Again the results are nice but I care about the future.