AlphaCell sources ingredients from suppliers that provide third-party documents to prove their validity. AlphaCell products are bioavailable and have 99.5% purity which is proven by 3rd party tests and certification. The dark side of large well-known brands, having cheap, ineffective formulas being sold on mass. Although the ingredients might be safe, it is common practice where the form of ingredient is not bioavailable (poorly absorbed), and the dosage is not nearly as enough to provide any benefits according to the research.