Used 2-3 times, unfortunately didn’t work for my skin, basically brand new. Retails for $28. Is the 4 fl oz bottle. The solution to angry skin, the SOS Facial Spray helps soothe irritation and defends against daily damage from skin's everyday stressors, including makeup, sweat, grime and pollution. SOS maximizes the power of your skin's defense system by strengthening the skin barrier and supporting its natural renewal process. Featuring Hypochlorous Acid, a naturally occurring organic compound found in your body's own defense system, and a skin-happy pH of 4.5 to calm and renew stressed out skin.