Can Renuva be used to create fuller looking breasts and cleavage? Would it last forever?

Currently, Renuva is cost prohibitive for large volume treatment for most, although it has been used successfully to give more definition to targeted body areas.
Renuva is mostly used to replenish age-related small volume loss in the face or hands, and for smoothing and correcting indentations and irregularities in other areas of the body. Renuva is also ideal for helping to contour body areas that can't be achieved through exercise.
The makers of Renuva are working on creating a new groundbreaking treatment for larger volume replacement, and we can’t wait. We expect to be able to treat areas in need of large volume, like the buttocks, by March, 2021!
To answer your other questions – when injected, Renuva creates a scaffold like framework, known as a matrix, housed with growth factors that the body utilizes to build fat cells.
The Renuva matrix dissolves within 3 months after the treatment, leaving your only your body's own fat behind – which creates beautiful, natural-looking results.
The fat in the treated area will last as long as your fat cells normally live. This varies from person to person, but several published studies report that fat cells can live 10 years, and more.
And yes, Renuva is incredibly safe! Renuva is regulated by the FDA, has passed rigorous safety testing, and a literature review has recently been published in the Journal of Cosmetic Dermatology.

Really great questions! You are correct – Renuva is intended for replenishing volume in small areas. It's currently cost-prohibitive to inject large amounts of Renuva.

The creators of Renuva are currently working on a new treatment for large volume areas, but we don't have information on when that will be available.

When Renuva is injected, it creates a honeycomb-like matrix. This matrix is full collagens, proteins and growth factors needed to build fat cells. The Renuva matrix is gradually filled with your body's own fat and then the matrix dissolves, leaving only your own fat cells behind.

The fat is just like any other fat in your body and will live as long as your fat cells live. For most people this is about 10 years, though it does vary from person to person.

Renuva is very safe. It's passed safety testing and is regulated by the FDA.

The issues regarding Renuva for a breast augmentation, or buttock augmentation for that matter, involves amount of augmentation achievable, long-term results, and long-term studies regarding possible complications  and safety.Cost becomes an issue because it takes numerous syringes of the product to achieve appropriate augmentation. I also have serious concerns about long-term safety as it has not been studied. Breast implants enjoy a high level of satisfaction and are still the best option for most people. Consult with a board certified plastic surgeon to explore the best options for you. Good luck.