OPTILUBE is a transparent, water-soluble lubricating jelly with a pH range of 5.0 – 7.0, harmless to human tissue, will not injure rubber, metal appliances, instruments, natural or synthetic textiles. It is formulated to adhere well to gloves and instruments so as to aid the smooth insertion of medical devices during a range of examinations and procedures. Recommended for insertion of tampons, rectal thermometers, catheters, enemas and douches. Product Directions: Tear sachet at one end and apply amount as required. Discard any unused portion. Product Ingredients: Purified water, PEG, Glycerine, Sodium Hydroxide, 4-Hydroxybenzoic Acid Esters