Herbal breast growth?

No, there is nothing you can take, rub on, or exercise you can do to increase your breast size. Just like there is no way to lengthen your arms or legs. Your breasts are fatty tissue. If you want them to be bigger naturally you need to get pregnant or gain weight.

The only way to "permanently enlarge" breasts is with breast implants. Herbs will do ABSOLUTELY NOTHING. Phytoestrogens aren't nearly potent enough to trigger the growth of the mammary glands - which is what breast tissue is. Over time, the breasts also accumulate fat stores, which fluctuates with the overall body fat percentage. The only way to cause breast tissue to grow is with estrogen. The only people who should be taking estrogen are females, or Transsexual female, and then only in accordance with the WPATH standards of care and proper medical oversight. "Transgender" people may or may not be Transsexual, so it really means nothing. To qualify for contra-hormone therapy, a person needs to be diagnosed with gender dysphoria by a gender therapist, undergo a minimum evaluation period, and obtain a letter of recommendation from that gender therapist.