a safety razor blade unit is provided including at least one blade with a sharp cutting edge extending lengthwise of the blade unit , the blade being carried by a blade assembly , a support structure to which the blade assembly is pivotally joined by a hinge running the length of the blade , the support structure including first spring elements , disposed along the length of the blade assembly , configured to resiliently oppose local deformation of the blade unit under shaving forces encountered in regions where the first spring elements act , and second spring elements , interposed between the support structure and blade assembly , configured to resiliently bias the blade assembly toward a normal position with respect to the support structure .