15 available. I buy in bulk to save money. I've been on oxygen for a few years now and I have allergies to, so this helps me prevent sinus infections. This round I've not gone through as much of it as I normal do so I'm selling some of it. I keep it in a temperature-controlled area to ensure it stays good. Asking 6.50 per a bottle or make me an offer on the 15. 435-233-0395 Stacy.