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Why does RBC use grape seed extract over pine bark extract?

April 26, 2017bark Extract grape Pine RBC seed

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Why does RBC use grape seed extract over pine bark extract?

2 Answers

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A. The most potent proanthocyanidins are produced from grape seed, 92% to 95% strength. The same compound extracted from pine bark is weaker at 82% to 85%. This means that grape seed provides a more powerful antioxidant compound.

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Antioxidant OPC Posted

Pine bark extract is either very expensive or very bad quality. French maritme pine bark extract is the excellent OPC ingredient, but very expensive. French grape seed extract is the best OPC source, contains higher content of OPC, and cheaper than French maritme pine bark extract.