Description
Blue Poppy Cang Er Zi San Caplets — Classical Sinus Relief Formula
Overview: Cang Er Zi San, also known as the Xanthium Formula, is a classical Traditional Chinese Medicine (TCM) remedy originating from the Song Dynasty. Blue Poppy’s modern caplet preparation delivers this time-honored formula in a convenient, concentrated format, making it easy to incorporate into daily wellness routines.
Key Benefits: Traditionally used to disperse wind, alleviate pain, and open nasal passages, Cang Er Zi San supports relief from sinus congestion, headaches, and allergy-related discomfort. It is especially valued for addressing seasonal sinus issues and wind-heat conditions affecting the head and respiratory system.
Who It’s For: Individuals experiencing nasal obstruction, sinus pressure, or allergy-related symptoms may benefit from this formula. It is often recommended for those with chronic or acute sinus conditions, offering gentle yet effective support for clear breathing and head comfort.
Quality and Purity: Blue Poppy’s Cang Er Zi San Caplets feature a synergistic blend of herbs including Bai Zhi (Radix Angelicae Dahuricae), Xin Yi Hua (Flos Magnoliae), Cang Er Zi (Fructus Xanthii), and Bo He (Herba Menthae Haplocalycis). Together, these herbs clear nasal passages, resolve exterior wind, eliminate dampness, and guide the formula’s effects to the head.
Use and Format: Offered as 7:1 concentrated extract caplets (750 mg), Blue Poppy’s preparation ensures potency and convenience. Typical use is 3 caplets, twice daily, or as directed by a licensed healthcare practitioner.
Note: Cang Er Zi San is a classical herbal formula intended to support sinus and respiratory health. It is not a substitute for medical treatment. Consult a licensed healthcare professional before use, especially if pregnant, nursing, or taking medications.













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