Hello! A ‘gummy bear’ implant is so called because when it is cut in half, the material (usually silicone) inside the implant remains intact, and keeps its shape - much like a gummy bear. ‘Memory Gel’ is the trademarked brand name for an implant range containing cohesive gel, which is a thickened gelatine-like silicone, somewhere between a liquid and a solid. Your surgeon will be able to discuss which type of implant will be best suited to you, and will also be able to advise on his or her experience with each – for example, what specific feedback patients with these implants have given.
MemoryGel is a term used by Mentor for their newer silicone gel implants. Gummy bear really refers to the shaped, tear drop silicone implants offered by both Mentor and Allergan. The problem is that they (gummies) are all textured. There is a new concern with textured implants causing a rare form of lymphoma called BIA-ALCL. I have always used smooth implants for various reasons, but this is a new reason to use smooth. Sientra makes a great implant and is my preference. Good luck!