Oxymetazoline hydrochloride is listed as the primary active ingredient.
Available product details show age labels of 3 years and up, 6 years and up, and 12 years and up, depending on the specific formulation.
Descriptions note moisturizing properties and specifically mention soothing aloe in the formulation.
Labels state for adults and children 6 years and older (with adult supervision): 2–3 sprays in each nostril, not more often than every 10–12 hours, and no more than 2 doses in 24 hours.
They are described as relieving nasal congestion, a stuffy nose, and sinus pressure caused by colds or seasonal allergies.
Sinex Severe products are delivered as an ultra-fine mist spray.
Labels state the sprays are not intended for daily use and caution users to follow dosing limits (for example, not more often than every 10–12 hours and no more than 2 doses in 24 hours).