- Quality is built into BGP’s products by fullproof properiotry product designs and FDA compliant facilities. Here at BGP Group of companies, powdered centella asiatica extract is prepared from centella asiatica by extraction with alcohol, methanok, aceton or a mixture of this solvents. It contains NLT 90 and NMT 110 of the labelled amount of triterpene derivated. We thrives to meet or exceed customer quality requirements and applicable regulatory requirements.