NU SKIN 2113629 LifePak Estera Phase 1 Package CA Estera Phase I Balance Formula is designed for women in their childbearing years to help promote a healthy ratio of estrogen metabolites and provide relief from common PMS symptoms. BENEFITS Provides phytoestrogens—plant based compounds. Phytoestrogens should be incorporated into a woman’s diet from an early age to protect breast and uterine tissues.* Flaxseed powder lignans help promote a healthy ratio of estrogen metabolites early in life* Estera Phase I also provides relief from PMS symptoms including fatigue, mild mood swings, breast tenderness, and water retention*