Do breast enlargement pills work?

No. Be careful: Breast enlargement pills mostly do nothing but be very careful as these heavily marketed items are not regulated by the fda. There is a possibility that these ittems can do harm to your body.

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.