Are there any breast enhancement pills that actually work?

Many but effects?: I am sure that there are many that make these claims, however, the effects will vary from virtually no side effects or results to more extensive effects particularly if they are hormonal analogues, with similar effects to oral contraceptives or estrogen replacement with head aches, weight or fluid gain, tenderness, masses, increased clotting tendencies, etc. I am not aware of any good science.

No: None have been proven.

No: If they existed and worked, you would already know.