Breast development begins at puberty and is regulated by the balance of specific hormones. Medical research has shown that the development of breast tissue depends on the delicate balance of progesterone, estrogen, prostaglandins, prolactin and other compounds. An imbalance of these hormones can result in poor breast development or even atrophy (decrease in size).

Phytoestrogens are a group of substances found in plants that have moderate estrogenic properties. The phytoestrogens compete for the same receptor cells as true estrogen. Phytoestrogens, through their natural balance of female hormones, promote the development of glandular breast tissue and act as a powerful natural breast enlargement factor. Most women taking herbs containing these phytoestrogens notice a significant increase in the fullness and balance of their breasts.

There are a number of herbs that have been promoted by different companies that contain good levels of phytoestrogens and have the action of promoting breast tissue growth and tone.

Pueraria mirifica (also known as Kwao Krua or Butea Superba) is a plant found in Thailand and Myanmar. Its tuber (fleshy underground stem or root) contains phytoestrogens such as miroestrol, deoxymiroestrol, and coumestans. Miroestrol and deoxymiroestrol are found only in Pueraria mirifica. They are much stronger than soy or red clover isoflavones, and are under investigation for possible use in hormone replacement therapy. One of the amazing "side-effects" of this herb is it's action of increasing breast size and firmness. Tests carried out by Thailand's Chulalongkorn University found Pueraria mirifica therapy was able to enhance breast size by up to 80%. Further tests carried out in England found that the plant had a beneficial effect on the skin, and hair, as well as the breasts. This herb is used in both capsule and cream form in natural breast enhancement formulas.

Dandelion Root has two particularly important uses: to promote the formation of bile and to remove excess water from the body in edemas conditions resulting from liver problems. The root especially effects all forms of secretion and excretion from the body. This boosting of secretion is key to the breast enhancement and formation of new breast cells and tissue. No side effects or contradictions with normal use.

Watercress Leaf is the most ancient of green vegetables known to man and it's use can be traced back to the Persians, Greeks and Romans. Watercress is one of the best sources of vitamin E and contains significant amounts of folic acid and Lucien. Vitamin E is the fertility vitamin, essential to breast enlargement, Vitamin E helps the body to use oxygen, which increases physical endurance and stamina and improves heart response.

Red Clover is a source of many valuable nutrients including calcium, chromium, magnesium, niacin, phosphorus, potassium, thiamine, and vitamin C. Red clover is also considered to be one of the richest sources of isoflavones (water-soluble chemicals that act like estrogens).

Dong Quai Root aids the body in the efficient use of hormones. It is widely considered the ultimate female tonic herb. This herb helps restore energy, vitality and resistance to disease, and stimulates the breast enlargement. Scientists believe that one mechanism of action of Dong Quai is to promote natural progesterone synthesis. Progesterone is another hormone whose production declines at menopause. The plant nutrients can help to wash these out of the system, aiding in increasing the health of the breast tissue.

Fenugreek Seed Extract: Fenugreek is a unique herb rich in phyto-estrogens. Fenugreek aids in hormonal production, and facilitates the development of the mammary glands which 'feed' on estrogens.

Saw Palmetto Berry: Saw Palmetto is a small palm tree with large leaves and large deep red-black berries. Saw Palmetto berries contain an oil with a variety of physosterols. Studies have shown Saw Palmetto to successfully reverse atrophy of the mammary gland.

Fennel Seed: Fennel has long been praised for its abundance of flavonoids. These compounds exert mild estrogenic effects and are completely harmless and non-toxic.

Mexican Wild Yam Root: Commonly used as a treatment for osteoporosis, Mexican Wild Yam is a excellent source of Beta-Carotene and diosgenin, which are powerful Phytochemicals aiding in optimal breast development.

Hops Flower: Hops flower is a shrub rich in flavonoids, whose action in regulating the hormonal production facilitates development of the mammary glands.

There are a large number of herbal products that claim to enlarge a woman's breasts naturally - Breast Actives, Breast Success, Benefil, Bountiful Breast and Perfig are amongst some of the products and no doubt there are many others. The important thing is to carefully review the ingredients listing, testimonials and look out for a money back guarantee. Go with a company that has been in business for a while and has the money back guarantee.