Hello. The two are unrelated. Most lip filler is performed with hyaluronic acid (HA). Hyaluronic acid (HA) is a natural substance found in the body. HA dermal fillers consist of long chains of hyaluronic acid. Most dermal filler products will consist of HA cross-linked with a chemical such as 1,4-butanedioldiglycidyl ether (BDDE) for Restylane, Belotero and Juvéderm, divinyl sulfone (DVX) for Hylaform, 1,2,7,8-diepoxyoctane (DEO) for Puragen, and suspended in a physiological or phosphate-buffered solution (A bit technical). If the shape or fullness is not what you wish for, then it is possible to undergo a filler dissolving process. A small amount of numbing cream is applied to the lip area for approximately 15 minutes. After numbing, a small amount of hyaluronidase enzyme is then injected into the lips with a series of tiny injections to dissolve the lip fillers. It should be noted that hyaluronidase enzyme is also naturally found in our bodies. The injected hyaluronidase enzyme will be in such small amounts that it will not interfere with your BBL procedure. I hope that helps! Respectfully, Jules A Feledy, Jr, MD American Board of Plastic Surgery, American Society of Plastic Surgery