SculpSure under the chin (also known as submental), is an effective way to reduce fat permanently in that area. It does so the way SculpSure works elsewhere: by heating the fat cells to a temperature which results in their death; then, your lymphatic ("vacuum") system comes and clears away those fat cells, leaving you with less of a bulk in that area. Two treatments - 25 minutes each - at 4-6 week intervals, are recommended, and there is about a 43% reduction in the fat cells for those 2 treatments. You should see optimal results in twelve weeks, but some people start to see a reduction in as little as 4 weeks. SculpSure may also give you some skin tightening, but the device was not made for skin tightening, and so the company cannot advertise it as such. Kybella is a series of needle injections of a substance that also result in fat cells dying. It can sometimes leave you with lumpiness (temporary) under the chin, and may give you some bruising and tenderness in that area. It is not thought to be more effective than SculpSure. Ultimately, it is a personal decision. Good luck!