I would like to know why 800cc is the biggest in gel implants?

Many of the regulations imposed upon breast implant manufacturers comes from the FDA. Larger silicone breast implants are utilized in Europe.  In our practice, assuming patients are good candidates, saline overfilled breast implants are utilized quite effectively. You may find the attached link helpful to you as you learn more. Best wishes.

Based on studies showing increased complications with implants bigger than 800cc, that is what was approved for use in the United States.

Thank you for your question about breast implant sizes.  800cc is what the FDA determined to be the largest size for implants as larger implants can present a higher complication rate.  Some physicians however do offer overfilled saline breast implants, however this would require an in person consultation and thorough discussion of long term risks and benefits.  I hope this has been
helpful and I wish you all the best.
Brian S.
Coan, MD, FACS
Raleigh-Durham
Plastic Surgeon