We are all different because of our genetics. It can take up to 6-7 weeks to see increase by 1 cup size or 2 cup size can take up to 5-6 months. Results have also shown firming noticeable within one to two weeks, but as we mentioned about the genetics are different in each of us.It is a very effective cream to help you increase the size of your breasts. It has the BEST quality incredients and it‘s also natural. Brestrogen is inexpensive, safe and effective for women looking to increase the size of their breasts up to two cup sizes larger. Women suffering from sagging breasts can also take advantage of Brestrogen's firming and lifting properties.