Hi,
These seem to come in both pill and cream forms, but both rely on phytoestrogens as their active ingredient. I checked a few places on the net to see what I could find.
I found this Q&A on Intelihealth regarding the cream:
Q: Are there any dangers associated with using breast-augmentation cream? How do these creams work, and have there been any reported negative side effects?
A:
I did a quick Internet search and found no fewer than 30 different products labeled as breast-augmentation or enlargement topical products. The ingredient lists for these creams and ointments are not uniform, but many contain phytoestrogens. In theory, breast size should be increased if the estrogen receptors within the breast tissue are stimulated. Phytoestrogens, say the creams' manufacturers, are safe because they are natural.
The reality is that these products do not work and may not be safe. There are no published studies in the medical literature to support the claims made by these products. While the amount of estrogen in them is usually quite small, there are theoretical risks of use, especially in women with a history of breast cancer or a strong family history of that disease. The only reliable way to increase breast size is through breast enlargement surgery.
The safety of these products is going to depend on what is in the cream or ointment. Since the skin is a very effective barrier to most chemicals, it is unusual to have systemic side effects from them. The amount of estrogenic activity in these natural products is sufficiently low that a systemic effect is unlikely, but it is not impossible. The most likely side effect would be a local reaction or rash from the ingredients. I know of no specific reports of toxicity, however.
This is from iVillage regarding the pills..
Enhancing Breast Size
Q. I heard of a pill that is scientifically proven to make breasts grow larger. Do you know what it does? Does it work, and is it safe?
A. There are three things that will reliably increase breast size: gaining weight, pregnancy, and breast implants. Everything else from special exercises to creams to miracle pills that sound too good to be true are just that -- not true. Your breasts may become temporarily fuller and larger right before your period from fluctuations in hormone levels and fluid retention. Some women on birth control pills or hormone replacement also may have this swelling. It is possible that the pills you describe contain some estrogen-like substances that will promote fluid retention and cause some breast swelling, but this effect will be inconsistent and temporary at best. Of course, these pills may just provide more calories, causing weight gain everywhere, including in the breasts.
In my opinion, these "miracle breast-building" products increase only one thing -- the wallets of the people selling them.
by Kelly Shanahan, M.D.
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I used the MegaBust website for information about these products. I noticed that they state no clinical trials have ever been conducted on these types of products. However, they are seeking volunteers for the very first trial. Any lucky participants will be entitled to purchase the product for a 25% discount during the trial
Manufacturers of these products get past the FDA because they use herbal ingredients which are currently unregulated.