Nasal Spray

Bio-Sil Colloidal Silver Nasal Spray & 500 ml Combo delivers targeted sinus protection and convenient long-term value. Featuring a 50 ml Nasal Spray and a 500 ml refill bottle, this natural, non-toxic pair supports your mucosal immune system against colds, flu, sinus issues, and congestion. The 50 ml bottle is fully refillable, making this a smart once-off purchase. Apply as frequently as desired to soothe nostrils, clear passages, and restore easy breathing naturally.