Yu Ping Feng (Astragalus Combo) – by Lao Wei:
Yu Ping Feng San (Astragalus Combo) – by Lao Wei is a very common TCM formula used build up the immune system (wei qi) for people who are prone to catching colds & flu very easily. This is a preventative formula that needs to be taken consistently for at least 6-8 weeks in order to be fully effective.





