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Health Concerns' Yin Chao Jin compared to Blue Poppy Herbs' ColdQuell Health Concerns' Yin Chao Jin is nothing other than Yin Qiao San (Lonicera & Forsythia Powder) with extract of Radix Isatidis Seu Baphicacanthi (Ban Lan Gen) added. Whatever the limitations of simple Yin Qiao San (as discussed above) are also the limitations of this version of that famous formula.
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