Sinex saline sprays are listed as simple saline solutions—typically purified water and sodium chloride (often described as ‘salt and purified water’ or ‘saline’).

Descriptions show standard isotonic saline and an Extra Strength formula; the Extra Strength product is described as 3X more concentrated compared with isotonic saline. For exact concentration details, refer to the product label.

Listed bottle sizes range from 0.33 fl oz up to 5 fl oz, with a 4.5 fl oz option also shown among the available sizes.

Product descriptions say the sprays help clear congestion and mucus, wash away dust, allergens and irritants, and soothe or moisturize nasal passages for relief from colds and allergies.

Listings indicate the sprays are non‑medicated/drug‑free and note no added preservatives; some explicitly say they are not made with preservatives like benzalkonium chloride or phenylcarbinol, and at least one product is described as sterile.