black tea extract polyphenols 15%--90%, Theaflavin:20%-60%, Caffein 2.2%-5.2%, egcg 1%-10%
- Negotiable
- 1 Set / Sets
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black tea extract polyphenols 15%--90%, Theaflavin:20%-60%, Caffein 2.2%-5.2%, egcg 1%-10%