By Dr. Killeen, published on November 21, 2025
For the edges of the implant, it really doesn't take a lot of fat — typically 10 to 20 cc's is plenty, and the risk of cysts and fat necrosis is much less with smaller volumes.
Motiva currently has two implant options on the U.S. market — the round implants and the Ergonomix implants. They look and feel quite different, and the right choice really depends on what kind of result you're going for.
The round implants use a firmer silicone that holds its shape very well. When you hold one up, the silicone stays in the upper portion of the implant rather than settling toward the bottom.
Best for patients who want:
As a bonus, because the silicone is firmer, the round implants also ripple even less than the already low-rippling Ergonomix — making them a great choice for thinner patients who want a fuller look.
The Ergonomix implants use a much softer silicone. When placed in the body, the silicone gently sags with gravity, creating a more natural slope from top to bottom.
Best for patients who want:
One of the things patients love about Motiva in general is how little they ripple. Both the round and Ergonomix implants are considered low-rippling. But if you're comparing the two directly, the round implants ripple less because of the firmer silicone.
Fat grafting can be used alongside any type of implant in a breast augmentation — Motiva round, Motiva Ergonomix, or any other. It's a wonderful tool for:
To feather the edges of an implant and make it less noticeable, you really don't need much — typically just 10 to 20 cc's per side. Using smaller volumes also means:
So small volumes of fat grafting can give beautiful, natural-looking refinement without the risks that come with larger fat grafting sessions.
If you want a round, perky look with maximum shape hold, go with Motiva round. If you want softer, more natural results, go with Motiva Ergonomix. And in either case, a little bit of fat grafting can take your result from great to exceptional.