Alternatives to BRAVA system?

Except for rare cases, I do not think that BRAVA is a very useful tool. Results are minimal and require a great deal of effort and inconvenience on the part of the patient to achieve even the modest results that BRAVA is able to obtain. Frankly, I wouldn't spend anhy money on BRAVA or any (even less reliable) knock-off system.

I don't usually use BRAVA, but have recommended it on occasion. One of the big problem with knock-off devices is that they may not work at all. Then you've paid something for nothing, which is worse than paying an inflated fee for something that does work. You'll have to work that out for yourself. If you are unhappy with the size of your breasts and you do have implants you may want to talk to your surgeon about larger implants. That would be a more reliable way of getting larger breasts.

Thigh I am not a big fan of the BRAVA I recommend usage this only since all the copy cats are not certified for use and they do not have any scientific studies to compare to the BRAVA ones!Plus the fees are very few $$s apart!

The BRAVA system has been available for quite some time and there may be FDA approved alternatives but I am not aware of any.  In my opinion, non surgical breast enhancement is cumbersome, difficult to predict in regards to outcome and even in the best of circumstances yields only very modest results.  If you already have implants, I would think that a visit to your surgeon to discuss an implant exchange which can typically be done under local anesthetic in the office setting would be a much better alternative for further enhancement.  As to risks of use of the BRAVA or similar device with implants in place, I would query the manufacturer directly including your implant manufacturer.  I think you will be disappointed with the investment / return on non invasive breast enhancement.