Blood Sachets contain Special Blood IEW and are made of a thin, transparent plastic film which can easily be brought to burst. Special Blood IEW can be used internal and external. Therefore it can be taken into the mouth or put into the nose, however Blood Sachets are not a food product and it is recommended not to swallow. When swallowed accidentally this product is not hazardous to health. Special Blood IEW is washable from most fabrics and is easily removed from skin.