*Correspondence: Gang Wei, [email protected] Chen, [email protected] Wang, [email protected] These authors have contributed equally to this work This article was submitted to Nutrition and Food Science Technology, a section of the journal Frontiers in Nutrition Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers
How to read a COA and dose these compounds responsibly A legitimate certificate of analysis (COA) for either peptide should include: identity confirmation by mass spectrometry or HPLC with retention time, purity expressed as area percentage by HPLC (look for values above 98% for pharmaceutical-grade material), water content (Karl Fischer titration), and residual solvent levels
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Grape seed ( Vitis vinifera ) Grapes themselves have been touted for their medicinal and nutritional benefits for thousands of years
