Do papaya enzyme supplements increase breast growth?

There are no exercises,
injections, supplements, foods (including papayas), or creams that will noticeably increase breast volume or lift the
breast. Most often, implants are used to augment the breasts of patients with
good skin quality who lack breast volume. For patients with both a lack
of volume and sagging breasts, a combination of a breast lift and augmentation
(mastopexy augmentation) can address both issues. See link below. A detailed examination will
help delineate the best surgical treatment. Consultation with a plastic surgeon
would be the next best step.

In order to prove a particular treatment or supplement can cause a certain biologic process large-scale studies are necessary. These have to be constructed in a careful manner to avoid biases. There is no evidence that is compelling that these supplements increase breast growth. It sure would be nice though.