Description

Grape seed extract is as follows: 1. Grape seed polyphenols: A. *5% by UV, folin assay B. *5% polyphenols with *5% phenolic monomers including Catechin, epicatechin, ECG, etc. By UV, Folin Assay and HPLC C. *0% by UV, folin assay D. *0% polyphenols with *0% phenolic monomers including Catechin, epicatechin, ECG, etc. By UV, Folin Assay and HPLC 2. Grape seed proanthocyanidins(OPCs) *5% by UV, Beta-Smith Assay Grape Skin Extract is derived from the skin of grapes and can be used as a supplement for anti-oxidant health products. The specification is as follows: 1. Anthocyanidins 5%, *5% 2. Polyphenols *5%, *0% 3. Resveratrol 5% Pine Bark Extract is as follows: 1. *5% Proanthocyanidins by UV, Beta-Smith Assay 2. *0%polyphenols by UV