Dr. Hana's Nasopure Bottle Set contains 1-8 oz & 1-4 oz Nasopure patented BPA free bottles, 5 buffered salt packets & detailed instructions. Each packet weighs 3.75 gm, and contains pharmaceutical grade sodium chloride & sodium bicarbonate. Each salt packet makes 4 oz of buffered hypertonic solution or 8 oz of isotonic (milder) solution. This kit makes a total of 20 oz of hypertonic solution or 40 oz of milder solution. NO OTHER ADDITIVES, PERFUMES OR INGREDIENTS.