Revolax Sub-Q with Lidocaine is a transparent, tissue-friendly, and completely aesthetic implant that is designed by Across, a South Korean pharmaceutical company that specializes in producing various medical products. This completely synthetic dermal filler is made of 24mg/ml of cross-linked hyaluronic acid gel of bacterial origin. The hyaluronic acid molecules are cross-linked into a monophasic and polydensified gel using 1,4-butanediol diglycidyl ether (BDDE).