[KongchangAI]
Unverified85% confidenceTradeoffTime unknown

虎杖(Polygonum cuspidatum)提取的白藜芦醇纯度可达98%以上且成本低,是市面主流原料;葡萄皮/葡萄籽来源纯度通常仅50%左右且含杂质,若产品强调'葡萄来源'但价格昂贵,性价比反而更低

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85%
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Long-term
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