... smaller particle size provides quicker rate of adsorption which reduces the amount of contact time required.Foodgrade Woood Powder ... adsorption, bleaching effect, enhancing drug purity, increase stability of drugs to avoid side effects and other features, especially ... hormones, ibuprofen, paracetamol, vitamin B1, vitamin B6, vitamin C, metronidazole, gallic acid, can also be used glyoxal, benzo ...