Hi, Is Rhodiola Estrogenic? Is It Safe For Me To

Hi, is Rhodiola estrogenic? Is it safe for me to take if I am a breast cancer survivor? I stay away from any herbs that build estrogen or are phytoestrogenic like soy, dong quai, angelica, red clover, wild yam, evening primrose, etc. so please let me know if it is safe for me to take Rhodiola. I know if works with your seratonin. Thank you!