About Us

Bridging Ancient Wisdom with Modern Motherhood

Our Story

Across Asia, the weeks after birth are honored with rest, nourishing soups, and herbal remedies rooted in centuries of tradition. In China it is called 坐月子 — "sitting the month." Mothers in the West rarely have access to these practices. We set out to change that.

The Fourth Trimester brings time-tested Asian postpartum care to modern mothers — wherever they are. Every product we offer is informed by experienced practitioners who bridge traditional knowledge with modern wellness practice.

Our Advisors

Guided by Trusted Practitioners

Our products are informed by experienced practitioners who bridge traditional knowledge with modern wellness practice.

พจ. Boonlua Rungsakaolert

Licensed TCM Practitioner

Boonlua Rungsakaolert is a Thai-licensed Traditional Chinese Medicine practitioner. He practices at Pranna Alternative Medicine Clinic, affiliated with Kluaynamthai Hospital in Bangkok. He holds Licence No. พจ.285 issued by the Professional Licensing Board in August 2011.

TCM Licence No. พจ.285 issued by the Professional Licensing Board

Dr. Haibo Guo

Medical Doctor (OBGYN)

Dr. Haibo Guo is a Chinese-trained medical doctor from Linzhao County, Gansu Province. She completed a five-year Bachelor of Medicine at Shanghai Railway Medical College, graduating in July 1990. She received her clinical training in obstetrics and gynaecology.