The active substance is: oxymetazoline hydrochloride 0.5mg/ml. One spray gives 25µg of oxymetazoline hydrochloride.The other ingredients are: levomenthol, sodium citrate dihydrate, tyloxapol, citric acid anhydrous, chlorhexidine digluconate solution, benzalkonium chloride solution, camphor, disodium edetate dihydrate, eucalyptol, sodium hydroxide and purified water.