For the Support Of:. PMS, Mood & Menopause. Healthy Breast Tissue. Healthy Estrogen Balance. Proactive Breast Health, PMS and Menopause Support. Brevail is for all women interested in maintaining optimal breast health and/or, nutritional support for common PMS and menopausal discomforts - all naturally, with just one capsule per day. Breast & Hormonal Health as Natural Intended. Brevail supplies lignans, natural compounds, ingested in seeds, grains, beans, fruits and vegetables throughout human history. Research suggests that our bodies use natural plant lignans, now sparse in the modern diet, to safely and gently buffer and balance excess estrogens. Brevail was university researched and developed to increase lignan concentrations in the body to match levels found in women who collectively demonstrate an extraordinary history of breast health and hormonal balance. Brevail isone-of-a-kind natural plant extract supported by university research for safety and efficacy in women.