Our R&D laboratory is developing a luxury, premium whitening serum that requires absolute raw material purity to maintain formulation stability and a clear visual profile. We recently sourced a 98% Glabridin sample from another vendor that appeared slightly yellow, which contradicts the true pure white standard for ultra-high purity grades. We need a detailed explanation of the true COA (Certificate of Analysis) benchmark for cosmetic grade Glabridin 98% powder. How can our internal QA team rigorously verify the HPLC chromatograms, heavy metal limits, and physical appearance to ensure we are receiving genuine, unadulterated raw materials?
George U. Answered question 4 hours ago
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